World War III (WWIII or WW3) and the Third World War are names given to a hypothetical third worldwide large-scale military conflict subsequent to World War I and II. The term has been in use since at least as early as 1941. Some have applied it loosely to refer to limited or smaller conflicts such as the Cold War or the War on Terror, while others assumed that such a conflict would surpass prior world wars both in its scope and in its destructive impact.
Due to the development and use of nuclear weapons near the end of World War II and their subsequent acquisition and deployment by many countries, the potential risk of a nuclear devastation of Earth's civilization and life is a common theme in speculations about a Third World War. Another major concern is that biological warfare could cause a very large number of casualties, either intentionally or inadvertently by an accidental release of a biological agent, the unexpected mutation of an agent, or its adaptation to other species after use. High-scale apocalyptic events like these, caused by advanced technology used for destruction, could potentially make the Earth's surface uninhabitable.
Prior to the beginning of the Second World War, the First World War (1914–1918) was believed to have been "the war to end all wars," as it was popularly believed that never again could there possibly be a global conflict of such magnitude. During the interwar period, WWI was typically referred to simply as "The Great War." The outbreak of World War II in 1939 disproved the hope that mankind might have already "outgrown" the need for such widespread global wars.
With the advent of the Cold War in 1945 and with the spread of nuclear weapons technology to the Soviet Union, the possibility of a third global conflict became more plausible. During the Cold War years, the possibility of a Third World War was anticipated and planned for by military and civil authorities in many countries. Scenarios ranged from conventional warfare to limited or total nuclear warfare. At the height of the Cold War, a scenario referred to as Mutually Assured Destruction ("MAD") had been calculated which determined that an all-out nuclear confrontation would most certainly destroy all or nearly all human life on the planet. The potential absolute destruction of the human race may have contributed to the ability of both American and Soviet leaders to avoid such a scenario.
Coinage
Time magazine
Time magazine was an early adopter if not originator of the term "World War III." The first usage appears in its 3 November 1941 issue (preceding the Japanese attack on Pearl Harbor on 7 December 1941) under its "National Affairs" section and entitled "World War III?" about Nazi refugee Dr. Hermann Rauschning, who had just arrived in the United States. In its 22 March 1943, issue under its "Foreign News" section, Time reused the same title "World War III?" with regard to statements by then-U.S. Vice President Henry A. Wallace: "We shall decide some time in 1943 or 1944 ... whether to plant the seeds of World War III." Time continued to entitle with or mention in stories the term "World War III" for the rest of the decade (and onwards): 1944, 1945, 1946 ("bacterial warfare"), 1947, and 1948. (Time persists in using this term, for example, in a 2015 book review entitled "This Is What World War III Will Look Like.")
Military plans
Military planners have been war gaming various scenarios, preparing for the worst, since the early days of the Cold War. Some of those plans are now out of date and have been partially or fully declassified.
Operation Unthinkable
British Prime Minister Winston Churchill was concerned that, with the enormous size of Soviet forces deployed in Europe at the end of WWII and the unreliability of the Soviet leader Joseph Stalin, there was a serious threat to Western Europe. In April–May 1945, the British Armed Forces developed Operation Unthinkable, thought to be the first scenario of the Third World War. Its primary goal was "to impose upon Russia the will of the United States and the British Empire". The plan was rejected by the British Chiefs of Staff Committee as militarily unfeasible.
Operation Dropshot
"Operation Dropshot" was the 1950s United States contingency plan for a possible nuclear and conventional war with the Soviet Union in the Western European and Asian theaters. Although the scenario made use of nuclear weapons, they were not expected to play a decisive role.
At the time the US nuclear arsenal was limited in size, based mostly in the United States, and depended on bombers for delivery. "Dropshot" included mission profiles that would have used 300 nuclear bombs and 29,000 high-explosive bombs on 200 targets in 100 cities and towns to wipe out 85% of the Soviet Union's industrial potential at a single stroke. Between 75 and 100 of the 300 nuclear weapons were targeted to destroy Soviet combat aircraft on the ground.
The scenario was devised prior to the development of intercontinental ballistic missiles. It was also devised before U.S. President John F. Kennedy and his Secretary of Defense Robert McNamara changed the US Nuclear War plan from the 'city killing' countervalue strike plan to a "counterforce" plan (targeted more at military forces). Nuclear weapons at this time were not accurate enough to hit a naval base without destroying the city adjacent to it, so the aim in using them was to destroy the enemy industrial capacity in an effort to cripple their war economy.
Exercises Grand Slam, Longstep, and Mainbrace
In January 1950, the North Atlantic Council approved NATO's military strategy of containment. NATO military planning took on a renewed urgency following the outbreak of the Korean War in the early 1950s, prompting NATO to establish a "force under a centralised command, adequate to deter aggression and to ensure the defence of Western Europe". Allied Command Europe was established under General of the Army Dwight D. Eisenhower, US Army, on 2 April 1951. The Western Union Defence Organization had previously carried out Exercise Verity, a 1949 multilateral exercise involving naval air strikes and submarine attacks.
Exercise Mainbrace brought together 200 ships and over 50,000 personnel to practice the defence of Denmark and Norway from Soviet attack in 1952. It was the first major NATO exercise. The exercise was jointly commanded by Supreme Allied Commander Atlantic Admiral Lynde D. McCormick, USN, and Supreme Allied Commander Europe General Matthew B. Ridgeway, US Army, during the autumn of 1952.
The United States, the United Kingdom, Canada, France, Denmark, Norway, Portugal, Netherlands, and Belgium all participated.
Exercises Grand Slam and Longstep were naval exercises held in the Mediterranean Sea during 1952 to practice dislodging an enemy occupying force and amphibious assault. It involved over 170 warships and 700 aircraft under the overall command of Admiral Robert B. Carney. The overall exercise commander, Admiral Carney summarized the accomplishments of Exercise Grand Slam by stating: "We have demonstrated that the senior commanders of all four powers can successfully take charge of a mixed task force and handle it effectively as a working unit."
The Soviet Union called the exercises "war-like acts" by NATO, with particular reference to the participation of Norway and Denmark, and prepared for its own military maneuvers in the Soviet Zone.
Exercise Strikeback
This was a major NATO naval exercise held in 1957, simulating a response to an all-out Soviet attack on NATO. The exercise involved over 200 warships, 650 aircraft, and 75,000 personnel from the United States Navy, the United Kingdom's Royal Navy, the Royal Canadian Navy, the French Navy, the Royal Netherlands Navy, and the Royal Norwegian Navy. As the largest peacetime naval operation up to that time, Exercise Strikeback was characterized by military analyst Hanson W. Baldwin of The New York Times as "constituting the strongest striking fleet assembled since World War II".
Exercise Reforger
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Exercise Reforger (from return of forces to Germany) was an annual exercise conducted, during the Cold War, by NATO. The exercise was intended to ensure that NATO had the ability to quickly deploy forces to West Germany in the event of a conflict with the Warsaw Pact. The Warsaw Pact outnumbered NATO throughout the Cold War in conventional forces, especially armor. Therefore, in the event of a Soviet invasion, in order not to resort to tactical nuclear strikes, NATO forces holding the line against a Warsaw Pact armored spearhead would have to be quickly resupplied and replaced. Most of this support would have come across the Atlantic from North America.
Reforger was not merely a show of force—in the event of a conflict, it would be the actual plan to strengthen the NATO presence in Europe. In that instance, it would have been referred to as Operation Reforger. Important components in Reforger included the Military Airlift Command, the Military Sealift Command, and the Civil Reserve Air Fleet.
Seven Days to the River Rhine
Seven Days to the River Rhine was a top-secret military simulation exercise developed in 1979 by the Warsaw Pact. It started with the assumption that NATO would launch a nuclear attack on the Vistula river valley in a first-strike scenario, which would result in as many as two million Polish civilian casualties. In response, a Soviet counter-strike would be carried out against West Germany, Belgium, the Netherlands and Denmark, with Warsaw Pact forces invading West Germany and aiming to stop at the River Rhine by the seventh day. Other USSR plans stopped only upon reaching the French border on day nine. Individual Warsaw Pact states were only assigned their own subpart of the strategic picture; in this case, the Polish forces were only expected to go as far as Germany. The Seven Days to the Rhine plan envisioned that Poland and Germany would be largely destroyed by nuclear exchanges, and that large numbers of troops would die of radiation sickness. It was estimated that NATO would fire nuclear weapons behind the advancing Soviet lines to cut off their supply lines and thus blunt their advance. While this plan assumed that NATO would use nuclear weapons to push back any Warsaw Pact invasion, it did not include nuclear strikes on France or the United Kingdom. Newspapers speculated when this plan was declassified, that France and the UK were not to be hit in an effort to get them to withhold use of their own nuclear weapons.
Exercise Able Archer
Exercise Able Archer was an annual exercise by the U.S. European Command that practised command and control procedures, with emphasis on the transition from solely conventional operations to chemical, nuclear, and conventional operations during a time of war.
"Able Archer 83" was a five-day North Atlantic Treaty Organization (NATO) command post exercise starting on 7 November 1983, that spanned Western Europe, centered on the Supreme Headquarters Allied Powers Europe (SHAPE) Headquarters in Casteau, north of the city of Mons. Able Archer exercises simulated a period of conflict escalation, culminating in a coordinated nuclear attack.
The realistic nature of the 1983 exercise, coupled with deteriorating relations between the United States and the Soviet Union and the anticipated arrival of strategic Pershing II nuclear missiles in Europe, led some members of the Soviet Politburo and military to believe that Able Archer 83 was a ruse of war, obscuring preparations for a genuine nuclear first strike. In response, the Soviets readied their nuclear forces and placed air units in East Germany and Poland on alert. This "1983 war scare" is considered by many historians to be the closest the world has come to nuclear war since the Cuban Missile Crisis of 1962. The threat of nuclear war ended with the conclusion of the exercise on 11 November, however.
Strategic Defense Initiative
The Strategic Defense Initiative (SDI) was proposed by U.S. President Ronald Reagan on 23 March 1983.[31] In the latter part of his presidency, numerous factors (which included watching the 1983 movie The Day After and hearing through a Soviet defector that Able Archer 83 almost triggered a Russian first strike) had turned Ronald Reagan against the concept of winnable nuclear war, and he began to see nuclear weapons as more of a "wild card" than a strategic deterrent. Although he later believed in disarmament treaties slowly blunting the danger of nuclear weaponry by reducing their number and alert status, he also believed a technological solution might allow incoming ICBMs to be shot down, thus making the US invulnerable to a first strike. However, the USSR saw the SDI concept as a major threat, since a unilateral deployment of the system would allow the US to launch a massive first strike on the Soviet Union without any fear of retaliation.
The SDI concept was to use ground-based and space-based systems to protect the United States from attack by strategic nuclear ballistic missiles. The initiative focused on strategic defense rather than the prior strategic offense doctrine of Mutual Assured Destruction (MAD). The Strategic Defense Initiative Organization (SDIO) was set up in 1984 within the United States Department of Defense to oversee the Strategic Defense Initiative.
NATO nuclear sharing
NATO operational plans for a Third World War have involved NATO allies who do not have their own nuclear weapons, using nuclear weapons supplied by the United States as part of a general NATO war plan, under the direction of NATO's Supreme Allied Commander.
Of the three nuclear powers in NATO (France, the United Kingdom, and the United States) only the United States has provided weapons for nuclear sharing. As of November 2009, Belgium, Germany, Italy, the Netherlands and Turkey are still hosting US nuclear weapons as part of NATO's nuclear sharing policy.[32][33] Canada hosted weapons until 1984,[34] and Greece until 2001.[32][35] The United Kingdom also received US tactical nuclear weapons such as nuclear artillery and Lance missiles until 1992, despite the UK being a nuclear weapons state in its own right; these were mainly deployed in Germany.
In peacetime, the nuclear weapons stored in non-nuclear countries are guarded by US airmen though previously some artillery and missile systems were guarded by US Army soldiers; the codes required for detonating them are under American control. In case of war, the weapons are to be mounted on the participating countries' warplanes. The weapons are under custody and control of USAF Munitions Support Squadrons co-located on NATO main operating bases who work together with the host nation forces.[32]
As of 2005, 180 tactical B61 nuclear bombs of the 480 US nuclear weapons believed to be deployed in Europe fall under the nuclear sharing arrangement.[36] The weapons are stored within a vault in hardened aircraft shelters, using the USAF WS3 Weapon Storage and Security System. The delivery warplanes used are F-16 Fighting Falcons and Panavia Tornados.[37]
Historical close calls
With the initiation of the Cold War arms race in the 1950s, an apocalyptic war between the United States and the Soviet Union became a real possibility. During the Cold War era (1947–1991), a number of military events have been described as having come quite close to potentially triggering World War III.
Korean War: 25 June 1950 – 27 July 1953
The Korean War was a war between two coalitions fighting for control over the Korean Peninsula: a communist coalition including North Korea, China and the Soviet Union, and a capitalist coalition including South Korea, the United States and the United Nations Command. Many then believed that the conflict was likely to soon escalate into a full-scale war between the three countries, the US, the USSR, and China. CBS war correspondent Bill Downs wrote in 1951 that, "To my mind, the answer is: Yes, Korea is the beginning of World War III. The brilliant landings at Inchon and the cooperative efforts of the American armed forces with the United Nations Allies have won us a victory in Korea. But this is only the first battle in a major international struggle which now is engulfing the Far East and the entire world."[38] Downs afterwards repeated this belief on ABC Evening News while reporting on the USS Pueblo incident in 1968.[39]
Berlin Crisis: 4 June – 9 November 1961
The Berlin Crisis of 1961 was a political-military confrontation between the United States and the Soviet Union at Checkpoint Charlie with both a number of American and Soviet tanks and troops at stand off at each other only 100 yards on either side of the checkpoint. The reason behind the confrontation was about the occupational status of the German capital city, Berlin, and of post–World War II Germany. The Berlin Crisis started when the USSR launched an ultimatum demanding the withdrawal of all armed forces from Berlin, including the Western armed forces in West Berlin. The crisis culminated in the city's de facto partition with the East German erection of the Berlin Wall. This stand-off ended peacefully on 28 October following a US-Soviet understanding to withdraw tanks and reduce tensions.
Cuban Missile Crisis: 15–28 October 1962
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The Cuban Missile Crisis: a confrontation on the stationing of Soviet nuclear missiles in Cuba, in response to the failed Bay of Pigs Invasion, is considered as having been the closest to a nuclear exchange, which could have precipitated a Third World War.[40] The crisis peaked on 27 October, with three separate major incidents occurring on the same day, all of these incidents having been initiated by the US military.
- The "Arkhipov save" incident occurred when a Soviet submarine nearly launched a nuclear-tipped torpedo in response to having been targeted by American naval depth charges in international waters, with the Soviet nuclear launch response only having being prevented by Soviet Navy executive officer Vasily Arkhipov.
- The shooting down of a Lockheed U-2 spy plane piloted by Rudolf Anderson while violating Cuban airspace.
- The near interception of another U-2 that had somehow managed to stray into Soviet airspace over Siberia, which airspace violation nearly caused the Soviets to believe that this might be the vanguard of a US aerial bombardment.
Despite what many believe to be the closest the world has come to a nuclear conflict, throughout the entire standoff, the Doomsday Clock, which is run by the Bulletin of the Atomic Scientists to estimate how close the end of the world, or doomsday, is, with midnight being the apocalypse, stayed at a relatively stable seven minutes to midnight. This has been explained as being due to the brevity of the crisis, since the clock monitored more long term factors such as leadership of countries, conflicts, wars, and political upheavals, as well as societies reactions to said factors.
The Bulletin of the Atomic Scientists now credits the political developments resulting from the Cuban Missile Crisis with having actually enhanced global stability. The Bulletin posits that future crises and occasions that might otherwise escalate, were rendered as more stable due to two major factors:
- A Washington to Moscow direct telephone line, resulted from the communication trouble between the White House and the Kremlin during the crisis, giving the leaders of the two largest nuclear powers the ability to contact each other in real time, rather than sending written messages that needed to be translated and wired, which had dragged out conversations in which seconds could have potentially prevented a nuclear exchange.
- The second factor was caused in part due to the worldwide reaction
to how close the US and USSR had come to the brink of World War III
during the standoff. As the public began to more closely monitor topics
involving nuclear weapons, and therefore to rally support for the cause
of non-proliferation, the 1963 test ban treaty was signed. To date this treaty has been signed by 126 total nations, with the most notable exceptions being France and China.
Both of these countries were still in the relative beginning stages of
their nuclear programs at the time of the original treaty signing, and
both sought nuclear capabilities independent of their allies.
This Test Ban Treaty prevented the testing of nuclear ordnance that detonated in the atmosphere, limiting testing to below ground and under water, decreasing fallout and effects on the environment, and subsequently caused the Doomsday Clock to decrease by five minutes, to arrive at a total of twelve minutes to midnight. Up until this point, over 1000 nuclear bombs had been detonated, and concerns over both long and short term affects to the planet became increasingly more worrisome to scientists.[41][failed verification]
Sino-Soviet border conflicts
The Sino-Soviet border conflict was a seven-month undeclared military conflict between the Soviet Union and China at the height of the Sino-Soviet split in 1969. The most serious of these border clashes, which brought the world's two largest communist states to the brink of war, occurred in March 1969 in the vicinity of Zhenbao (Damansky) Island on the Ussuri (Wusuli) River, near Manchuria.
The conflict resulted in a ceasefire, with a return to the status quo. Critics point out that the Chinese attack on Zhenbao was to deter any potential future Soviet invasions; that by killing some Soviets, China demonstrated that it could not be 'bullied'; and that Mao wanted to teach them 'a bitter lesson'.
China's relations with the USSR remained sour after the conflict, despite the border talks, which began in 1969 and continued inconclusively for a decade. Domestically, the threat of war caused by the border clashes inaugurated a new stage in the Cultural Revolution; that of China's thorough militarization. The 9th National Congress of the Communist Party of China, held in the aftermath of the Zhenbao Island incident, confirmed Defense Minister Lin Biao as Mao's heir apparent.
Following the events of 1969, the Soviet Union further increased its forces along the Sino-Soviet border, and in the Mongolian People's Republic.
Indo-Pakistani War of 1971
The Indo-Pakistani War of 1971 was a military confrontation between India and Pakistan that occurred during the liberation war in East Pakistan. The war began with preemptive aerial strikes on 11 Indian Air Force stations, which led to the commencement of hostilities with Pakistan and Indian entry into the war of independence in East Pakistan on the side of Bengali nationalist forces.
The Soviet Union sympathised with the East Pakistanis, and supported the Indian Army and Mukti Bahini's incursion against Pakistan during the war, in a broader view of recognising that the succession of East Pakistan as Independent Bangladesh would weaken the position of its rivals—the United States and China. The Soviet Union gave assurances to India that if a confrontation with the United States or China developed, it would take counter-measures. This assurance was enshrined in the Indo-Soviet Treaty of Friendship and Cooperation signed in August 1971.
The United States stood with Pakistan by supporting it morally, politically, economically and materially when U.S. President Richard Nixon and his Secretary of State Henry Kissinger refused to use rhetoric in a hopeless attempt to intervene in a large civil war. The U.S. establishment perceived to the impression that they needed Pakistan to help stop Soviet influence in South Asia in an informal alliance with India. Nixon feared that an Indian invasion of Pakistan would mean total Soviet domination of the region, and that it would seriously undermine the global position of the United States and the regional position of America's new tactical ally, China. Nixon encouraged Jordan and Iran to send military supplies to Pakistan, while also encouraging China to increase its arms supplies to Pakistan, but all supplies were very limited. The Nixon administration also ignored reports it received of the "genocidal" activities of the Pakistani Armed Forces in East Pakistan, most notably the Blood telegram, and this prompted widespread criticism and condemnation—both by the United States Congress and in the international press.
Then United States Ambassador to the United Nations, George H. W. Bush, introduced a resolution in the United Nations Security Council calling for a cease-fire and the withdrawal of armed forces by India and Pakistan. However, it was vetoed by the Soviet Union, and the following days witnessed the use of great pressure on the Soviets from the Nixon-Kissinger duo to get India to withdraw, but to no avail.
When Pakistan's defeat in the eastern sector seemed certain, Nixon deployed Task Force 74—led by the aircraft carrier USS Enterprise—into the Bay of Bengal. Enterprise and its escort ships arrived on station on 11 December 1971. The United Kingdom also deployed a carrier battle group led by the aircraft carrier HMS Eagle to the Bay, on her final deployment.
On 6 and 13 December, the Soviet Navy dispatched two groups of cruisers and destroyers from Vladivostok; they trailed US Task Force 74 into the Indian Ocean from 18 December 1971 until 7 January 1972. The Soviets also had a nuclear submarine to help ward off the threat posed by the USS Enterprise task force in the Indian Ocean.
As the war progressed, it became apparent to the United States that India was going to invade and disintegrate Pakistan in a matter of weeks, therefore President Nixon spoke with the USSR General Secretary Leonid Brezhnev on a hotline on 10 December, where Nixon reportedly urged Brezhnev to restrain India as he quoted: "in the strongest possible terms to restrain India with which … you [Brezhnev] have great influence and for whose actions you must share responsibility."
After the war, the United States accepted the new balance of power and recognised India as a dominant player in South Asia; the US immediately engaged in strengthening bilateral relations between the two countries in the successive years. The Soviet Union, while being sympathetic to Pakistan's loss, decided to engage with Pakistan after sending an invitation through Rodionov to Zulfikar Ali Bhutto, who paid a state visit to the Soviet Union in 1972 to strengthen bilateral relations that continued over the years.
Yom Kippur War super-power tensions: 6–25 October 1973
The Yom Kippur War, also known as the Ramadan War, or October War, began with Arab victories. Israel successfully counterattacked. Tensions grew between the US (which supported Israel) and the Soviet Union (which sided with the Arab states). American and Soviet naval forces came close to firing upon each other. Admiral Murphy of the US reckoned the chances of the Soviet squadron attempting a first strike against his fleet at 40 percent. The Pentagon moved Defcon status from 4 to 3.[42] The superpowers had been pushed to the brink of war, but tensions eased with the ceasefire brought in under UNSC 339.[43][44]
NORAD computer error of 1979: 9 November 1979
The United States made emergency retaliation preparations after NORAD saw on-screen indications that a full-scale Soviet attack had been launched.[45] No attempt was made to use the "red telephone" hotline to clarify the situation with the USSR and it was not until early-warning radar systems confirmed no such launch had taken place that NORAD realized that a computer system test had caused the display errors. A senator inside the NORAD facility at the time described an atmosphere of absolute panic. A GAO investigation led to the construction of an off-site test facility to prevent similar mistakes.[46]
"Petrov save" incident: 26 September 1983
A false alarm occurred on the Soviet nuclear early warning system, showing the launch of American LGM-30 Minuteman intercontinental ballistic missiles from bases in the United States. A retaliatory attack was prevented by Stanislav Petrov, a Soviet Air Defence Forces officer, who realised the system had simply malfunctioned (which was borne out by later investigations).[47][48]
Able Archer escalations: 2–11 November 1983
During Able Archer 83, a ten-day NATO exercise simulating a period of conflict escalation that culminated in a DEFCON 1 nuclear strike, some members of the Soviet Politburo and armed forces treated the events as a ruse of war concealing a genuine first strike. In response, the military prepared for a coordinated counter-attack by readying nuclear forces and placing air units stationed in the Warsaw Pact states of East Germany and Poland under high alert. However, the state of Soviet preparation for retaliation ceased upon completion of the Able Archer exercises.[22]
Norwegian rocket incident: 25 January 1995
The Norwegian rocket incident is the first World War III close call to occur outside the Cold War. This incident occurred when Russia's Olenegorsk early warning station accidentally mistook the radar signature from a Black Brant XII research rocket (being jointly launched by Norwegian and US scientists from Andøya Rocket Range), as appearing to be the radar signature of the launch of a Trident SLBM missile. In response, Russian President Boris Yeltsin was summoned and the Cheget nuclear briefcase was activated for the first and only time. However, the high command was soon able to determine that the rocket was not entering Russian airspace, and promptly aborted plans for combat readiness and retaliation. It was retrospectively determined that, while the rocket scientists had informed thirty states including Russia about the test launch, the information had not reached Russian radar technicians.[49][50]
Incident at Pristina airport: 12 June 1999
On 12 June 1999, the day following the end of the Kosovo War, some 250 Russian peacekeepers occupied the Pristina International Airport ahead of the arrival of NATO troops and were to secure the arrival of reinforcements by air. American NATO Supreme Allied Commander Europe General Wesley Clark ordered the use of force against the Russians.[51] Mike Jackson, a British Army general who contacted the Russians during the incident, refused to enforce Clark's orders, famously telling him "I'm not going to start the Third World War for you."[52] Captain James Blunt, the lead officer at the front of the NATO column in the direct armed stand-off against the Russians, received the "Destroy!" orders from Clark over the radio, but he followed Jackson's orders to encircle the airfield instead and later said in an interview that even without Jackson's intervention he would have refused to follow Clark's order.[53]
Extended usage of the term
Cold War
As Soviet-American relations grew more tense in the post-World War II period, the fear that it could escalate into World War III was ever-present. A Gallup poll in December 1950 found that more than half of Americans considered World War III to have already started.[54]
In 2004, commentator Norman Podhoretz proposed that the Cold War, lasting from the surrender of the Axis Powers until the fall of the Berlin Wall, might rightly be called World War III. By Podhoretz's reckoning, "World War IV" would be the global campaign against Islamofascism.[55][56]
Still the majority of historians would seem to hold that World War III would necessarily have to be a worldwide "war in which large forces from many countries fought"[57] and a war that "involves most of the principal nations of the world."[58] In his book Secret Weapons of the Cold War, Bill Yenne explains that the military standoff that occurred between the two 'Superpowers', namely the United States and the Soviet Union, from the 1940s through to 1991, was only the Cold War, which ultimately helped to enable mankind to avert the possibility of an all out nuclear confrontation, and that it certainly was not World War III.[59]
War on terror
The "war on terror" that began with the September 11 attacks has been claimed by some to be World War III or sometimes as World War IV. Others have disparaged such claims as "distorting American history." While there is general agreement amongst historians regarding the definitions and extent of the first two world wars, namely due to the unmistakable global scale of aggression and self-destruction of these two wars, a few have claimed that a "World War" might now no longer require such worldwide and large scale aggression and carnage. Still, such claims of a new "lower threshold of aggression," that might now be sufficient to qualify a war as a "World War" have not gained such widespread acceptance and support as the definitions of the first two world wars have received amongst historians.
War on ISIL
On 1 February 2015, Iraqi Foreign Minister Ibrahim al-Jaafari declared that the War on ISIL was effectively "World War III", due to ISIL's declaration of a Worldwide Caliphate, its aims to conquer the world, and its success in spreading the conflict to multiple countries outside of the Levant region. In response to the November 2015 Paris attacks, King of Jordan Abdullah II said "We are facing a Third World War [within Islam]."
In his State of the Union Address on 12 January 2016, U.S. President Barack Obama warned that news reports granting ISIL the supposed ability to foment WWIII might be excessive and irresponsible, stating that, "as we focus on destroying ISIL, over-the-top claims that this is World War III just play into their hands. Masses of fighters on the back of pickup trucks and twisted souls plotting in apartments or garages pose an enormous danger to civilians and must be stopped. But they do not threaten our national existence."
Multiple small wars as a "third war"
In multiple recorded interviews under somewhat casual circumstances, comparing the conflagrations of World War I and II to the ongoing lower intensity wars of the 21st century, Pope Francis has said, "The world is at war, because it has lost peace," and "perhaps one can speak of a third war, one fought piecemeal."
Hypothetical scenarios
In 1949, after the unleashing of nuclear weaponry at the end of WWII, physicist Albert Einstein suggested that any outcome of a possible WWIII would be so dire as to revert mankind back to the Stone Age. When asked by journalist Alfred Werner what types of weapons Einstein believed World War III might be fought with, Einstein warned, "I know not with what weapons World War III will be fought, but World War IV will be fought with sticks and stones".
A 1998 New England Journal of Medicine overview found that "Although many people believe that the threat of a nuclear attack largely disappeared with the end of the Cold War, there is considerable evidence to the contrary." The United States – Russia mutual detargeting agreement in 1994 was largely symbolic, and did not change the amount of time required to launch an attack. The most likely "accidental-attack" scenario was believed to be a retaliatory launch due to a false warning. Historically, World War I happened through an escalating crisis; World War II happened through deliberate action. Both sides often assume their side will win a "short" fight; according to a 2014 poll, 3/4 of the public in China believes their military would win in a war with the U.S. Hypothesized flashpoints in the 2010s included Russian intervention in Ukraine, and Chinese expansion into adjacent islands and seas. Other hypothesized risks are that a war involving Iran, Israel, Pakistan, India, North Korea, or Taiwan, could escalate via alliances or intervention into a war between "great powers" such as the U.S., Russia, or China; or that a "rogue commander" under any nuclear power might launch an unauthorized strike that escalates into full war.
Some scenarios involve risks due to upcoming changes from the known "status quo". In the 1980s the Strategic Defense Initiative made an effort at nullifying the USSR's nuclear arsenal; some analysts believe the initiative was "destabilizing". In his book Destined for War, Graham Allison views the global rivalry between the established power, the US, and the rising power, China, as an example of the Thucydides Trap. Allison states that historically, "12 of 16 past cases where a rising power has confronted a ruling power" have led to fighting. In January 2020 the Union of Concerned Scientists advanced its Doomsday Clock, citing (among other factors) a predicted destabilizing effect from upcoming hypersonic weapons.
Emerging technologies, such as artificial intelligence, could hypothetically generate risk in the decades ahead. A 2018 RAND Corporation report has argued that AI and associated information technology "will have a large effect on nuclear-security issues in the next quarter century". A hypothetical future AI could provide a destabilizing ability to track "second-launch" launchers. Incorporating AI into decision support systems used to decide whether to launch, could also generate new risks, including the risk of an adversarial exploitation of such an AI's algorithms by a third party to trigger a launch recommendation. A perception that some sort of emerging technology would lead to "world domination" might also be destabilizing, for example by leading to fear of a pre-emptive strike.
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