History of NATO

The Treaty of Brussels, signed on 17 March 1948 by Belgium, the Netherlands, Luxembourg, France, and the United Kingdom, is considered the precursor to the NATO agreement. The treaty and the Soviet Berlin Blockade led to the creation of the Western European Union's Defence Organization in September 1948.

However, participation of the United States was thought necessary both to counter the military power of the USSR and to prevent the revival of nationalist militarism, so talks for a new military alliance began almost immediately resulting in the North Atlantic Treaty, which was signed in Washington, D.C. on 4 April 1949. It included the five Treaty of Brussels states plus the United States, Canada, Portugal, Italy, Norway, Denmark and Iceland.

 The first NATO Secretary General, Lord Ismay, stated in 1949 that the organization's goal was "to keep the Russians out, the Americans in, and the Germans down." Popular support for the Treaty was not unanimous, and some Icelanders participated in a pro-neutrality, anti-membership riot in March 1949. The creation of NATO can be seen as the primary institutional consequence of a school of thought called Atlanticism which stressed the importance of trans-Atlantic cooperation.

The members agreed that an armed attack against any one of them in Europe or North America would be considered an attack against them all. Consequently they agreed that, if an armed attack occurred, each of them, in exercise of the right of individual or collective self-defence, would assist the member being attacked, taking such action as it deemed necessary, including the use of armed force, to restore and maintain the security of the North Atlantic area.

The treaty does not require members to respond with military action against an aggressor. Although obliged to respond, they maintain the freedom to choose the method by which they do so. This differs from Article IV of the Treaty of Brussels, which clearly states that the response will be military in nature. It is nonetheless assumed that NATO members will aid the attacked member militarily. The treaty was later clarified to include both the member's territory and their "vessels, forces or aircraft" above the Tropic of Cancer, including some Overseas departments of France.

The creation of NATO brought about some standardization of allied military terminology, procedures, and technology, which in many cases meant European countries adopting U.S. practices. The roughly 1300 Standardization Agreements (STANAG) codified many of the common practices that NATO has achieved.

Hence, the 7.62×51 NATO rifle cartridge was introduced in the 1950s as a standard firearm cartridge among many NATO countries. Fabrique Nationale de Herstal's FAL, which used 7.62 NATO cartridge, was adopted by 75 countries, including many outside of NATO.Also, aircraft marshalling signals were standardized, so that any NATO aircraft could land at any NATO base. Other standards such as the NATO phonetic alphabet have made their way beyond NATO into civilian use.

The outbreak of the Korean War in June 1950 was crucial for NATO as it raised the apparent threat of all Communist countries working together, and forced the alliance to develop concrete military plans.SHAPE, the Supreme Headquarters Allied Powers Europe, was formed as a consolidated command structure, and began work under Supreme Allied Commander Dwight D. Eisenhower in January 1951. The 1952 Lisbon conference, seeking to provide the forces necessary for NATO's Long-Term Defence Plan, called for an expansion to ninety-six divisions.

However this requirement was dropped the following year to roughly thirty-five divisions with heavier use to be made of nuclear weapons. At this time, NATO could call on about fifteen ready divisions in Central Europe, and another ten in Italy and Scandinavia.Also at Lisbon, the post of Secretary General of NATO as the organization's chief civilian was created, and Lord Ismay was eventually appointed to the post.

In September 1952, the first major NATO maritime exercises began; Exercise Mainbrace brought together 200 ships and over 50,000 personnel to practice the defence of Denmark and Norway.Other major exercises that followed included Exercise Grand Slam and Exercise Longstep, naval and amphibious exercises in the Mediterranean Sea, Italic Weld, a combined air-naval-ground exercise in northern Italy, Grand Repulse, involving the British Army on the Rhine (BAOR), the Netherlands Corps and Allied Air Forces Central Europe (AAFCE), Monte Carlo, a simulated atomic air-ground exercise involving the Central Army Group, and Weldfast, a combined amphibious landing exercise in the Mediterranean Sea involving British, Greek, Italian, Turkish, and U.S. naval forces.

Greece and Turkey also joined the alliance in 1952, forcing a series of controversial negotiations, in which the United States and Britain were the primary disputants, over how to bring the two countries into the military command structure. While this overt military preparation was going on, covert stay-behind arrangements initially made by the Western European Union to continue resistance after a successful Soviet invasion, including Operation Gladio, were transferred to NATO control. Ultimately unofficial bonds began to grow between NATO's armed forces, such as the NATO Tiger Association and competitions such as the Canadian Army Trophy for tank gunnery.

In 1954, the Soviet Union suggested that it should join NATO to preserve peace in Europe.The NATO countries, fearing that the Soviet Union's motive was to weaken the alliance, ultimately rejected this proposal. The incorporation of West Germany into the organization on 9 May 1955 was described as "a decisive turning point in the history of our continent" by Halvard Lange, Foreign Affairs Minister of Norway at the time.

 A major reason for Germany's entry into the alliance was that without German manpower, it would have been impossible to field enough conventional forces to resist a Soviet invasion.One of its immediate results was the creation of the Warsaw Pact, which was signed on 14 May 1955 by the Soviet Union, Hungary, Czechoslovakia, Poland, Bulgaria, Romania, Albania, and East Germany, as a formal response to this event, there by delineating the two opposing sides of the Cold War.

Three major exercises were held concurrently in the northern autumn of 1957. Operation Counter Punch, Operation Strikeback, and Operation Deep Water were the most ambitious military undertaking for the alliance to date, involving more than 250,000 men, 300 ships, and 1,500 aircraft operating from Norway to Turkey.

NATO's unity was breached early in its history with a crisis occurring during Charles de Gaulle's presidency of France. De Gaulle protested the United States' strong role in the organization and what he perceived as a special relationship between it and the United Kingdom. In a memorandum sent to President Dwight D. Eisenhower and Prime Minister Harold Macmillan on 17 September 1958, he argued for the creation of a tripartite directorate that would put France on an equal footing with the US and the UK.

Considering the response he received to his memorandum unsatisfactory, de Gaulle began constructing an independent defence force for his country. He wanted to give France, in the event of an East German incursion into West Germany, the option of coming to a separate peace with the Eastern bloc instead of being drawn into a larger NATO-Warsaw Pact war.In February 1959, France withdrew its Mediterranean Fleet from NATO command. 

He later banned the stationing of foreign nuclear weapons on French soil. This caused the United States to transfer two hundred military aircraft out of France and return control of the air force bases that had operated in France since 1950 to the French by 1967.

Though France showed solidarity with the rest of NATO during the Cuban Missile Crisis in 1962, de Gaulle continued his pursuit of an independent defence by removing France's Atlantic and Channel fleets from NATO command. In 1966, all French armed forces were removed from NATO's integrated military command, and all non-French NATO troops were asked to leave France. U.S. Secretary of State Dean Rusk was later quoted as asking de Gaulle whether his order included "the bodies of American soldiers in France's cemeteries?" This withdrawal forced the relocation of SHAPE from Rocquencourt, near Paris, to Casteau, north of Mons, Belgium, by 16 October 1967.

France remained a member of the alliance, and committed to the defence of Europe from possible Warsaw Pact attack with its own forces stationed in the Federal Republic of Germany throughout the Cold War. A series of secret accords between US and French officials, the Lemnitzer-Ailleret Agreements, detailed how French forces would dovetail back into NATO's command structure should East-West hostilities break out.

During most of the Cold War, NATO's watch against the Soviet Union and Warsaw Pact did not actually lead to direct military action. On 1 July 1968, the Nuclear Non-Proliferation Treaty opened for signature: NATO argued that its nuclear sharing arrangements did not breach the treaty as US forces controlled the weapons until a decision was made to go to war, at which point the treaty would no longer be controlling.

Few states knew of the NATO nuclear sharing arrangements at that time, and they were not challenged. In May 1978, NATO countries officially defined two complementary aims of the Alliance, to maintain security and pursue détente. This was supposed to mean matching defences at the level rendered necessary by the Warsaw Pact's offensive capabilities without spurring a further arms race.

On 12 December 1979, in light of a build-up of Warsaw Pact nuclear capabilities in Europe, ministers approved the deployment of US GLCM cruise missiles and Pershing II theatre nuclear weapons in Europe. The new warheads were also meant to strengthen the western negotiating position regarding nuclear disarmament. This policy was called the Dual Track policy. 

Similarly, in 1983–84, responding to the stationing of Warsaw Pact SS-20 medium-range missiles in Europe, NATO deployed modern Pershing II missiles tasked to hit military targets such as tank formations in the event of war. This action led to peace movement protests throughout Western Europe, and support for the deployment wavered as many doubted whether the push for deployment could be sustained.

The membership of the organization at this time remained largely static. In 1974, as a consequence of the Turkish invasion of Cyprus, Greece withdrew its forces from NATO's military command structure but, with Turkish cooperation, were readmitted in 1980. The Falklands War between the United Kingdom and Argentina did not result in NATO involvement because of the limited scope of NATO.

 On 30 May 1982, NATO gained a new member when, following a referendum, the newly democratic Spain joined the alliance. At the peak of the Cold War, 16 member nations maintained an approximate strength of 5,252,800 active military, including as many as 435,000 forward deployed U.S. forces, under a command structure that reached a peak of 78 headquarters, organized into four echelons.

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