North Atlantic Treaty Organization (NATO) | Britannica.com

Alternative title: NATO

North Atlantic Treaty Organization (NATO), military alliance established by the North Atlantic Treaty (also called the Washington Treaty) of April 4, 1949, which sought to create a counterweight to Soviet armies stationed in central and eastern Europe after World War II. Its original members were Belgium, Canada, Denmark, France, Iceland, Italy, Luxembourg, the Netherlands, Norway, Portugal, the United Kingdom, and the United States. Joining the original signatories were Greece and Turkey (1952); West Germany (1955; from 1990 as Germany); Spain (1982); the Czech Republic, Hungary, and Poland (1999); Bulgaria, Estonia, Latvia, Lithuania, Romania, Slovakia, and Slovenia (2004); and Albania and Croatia (2009). France withdrew from the integrated military command of NATO in 1966 but remained a member of the organization; it resumed its position in NATOs military command in 2009.

The heart of NATO is expressed in Article 5 of the North Atlantic Treaty, in which the signatory members agree that

an armed attack against one or more of them in Europe or North America shall be considered an attack against them all; and consequently they agree that, if such an armed attack occurs, each of them, in exercise of the right of individual or collective self-defense recognized by Article 51 of the Charter of the United Nations, will assist the Party or Parties so attacked by taking forthwith, individually and in concert with the other Parties, such action as it deems necessary, including the use of armed force, to restore and maintain the security of the North Atlantic area.

NATO invoked Article 5 for the first time in 2001, after terrorist attacks organized by exiled Saudi Arabian millionaire Osama bin Laden destroyed the World Trade Center in New York City and part of the Pentagon outside Washington, D.C., killing some 3,000 people.

Article 6 defines the geographic scope of the treaty as covering an armed attack on the territory of any of the Parties in Europe or North America. Other articles commit the allies to strengthening their democratic institutions, to building their collective military capability, to consulting each other, and to remaining open to inviting other European states to join.

Barkley, Alben W.: North Atlantic Treaty signingEncyclopdia Britannica, Inc.After World War II in 1945, western Europe was economically exhausted and militarily weak (the western Allies had rapidly and drastically reduced their armies at the end of the war), and newly powerful communist parties had arisen in France and Italy. By contrast, the Soviet Union had emerged from the war with its armies dominating all the states of central and eastern Europe, and by 1948 communists under Moscows sponsorship had consolidated their control of the governments of those countries and suppressed all noncommunist political activity. What became known as the Iron Curtain, a term popularized by Winston Churchill, had descended over central and eastern Europe. Further, wartime cooperation between the western Allies and the Soviets had completely broken down. Each side was organizing its own sector of occupied Germany, so that two German states would emerge, a democratic one in the west and a communist one in the east.

In 1948 the United States launched the Marshall Plan, which infused massive amounts of economic aid to the countries of western and southern Europe on the condition that they cooperate with each other and engage in joint planning to hasten their mutual recovery. As for military recovery, under the Brussels Treaty of 1948, the United Kingdom, France, and the Low CountriesBelgium, the Netherlands, and Luxembourgconcluded a collective-defense agreement called the Western European Union. It was soon recognized, however, that a more formidable alliance would be required to provide an adequate military counterweight to the Soviets.

By this time Britain, Canada, and the United States had already engaged in secret exploratory talks on security arrangements that would serve as an alternative to the United Nations (UN), which was becoming paralyzed by the rapidly emerging Cold War. In March 1948, following a virtual communist coup dtat in Czechoslovakia in February, the three governments began discussions on a multilateral collective-defense scheme that would enhance Western security and promote democratic values. These discussions were eventually joined by France, the Low Countries, and Norway and in April 1949 resulted in the North Atlantic Treaty.

Spurred by the North Korean invasion of South Korea in June 1950, the United States took steps to demonstrate that it would resist any Soviet military expansion or pressures in Europe. General Dwight D. Eisenhower, the leader of the Allied forces in western Europe in World War II, was named Supreme Allied Commander Europe (SACEUR) by the North Atlantic Council (NATOs governing body) in December 1950. He was followed as SACEUR by a succession of American generals.

The North Atlantic Council, which was established soon after the treaty came into effect, is composed of ministerial representatives of the member states, who meet at least twice a year. At other times the council, chaired by the NATO secretary-general, remains in permanent session at the ambassadorial level. Just as the position of SACEUR has always been held by an American, the secretary-generalship has always been held by a European.

NATOs military organization encompasses a complete system of commands for possible wartime use. The Military Committee, consisting of representatives of the military chiefs of staff of the member states, subsumes two strategic commands: Allied Command Operations (ACO) and Allied Command Transformation (ACT). ACO is headed by the SACEUR and located at Supreme Headquarters Allied Powers Europe (SHAPE) in Casteau, Belgium. ACT is headquartered in Norfolk, Virginia, U.S. During the alliances first 20 years, more than $3 billion worth of infrastructure for NATO forcesbases, airfields, pipelines, communications networks, depotswas jointly planned, financed, and built, with about one-third of the funding from the United States. NATO funding generally is not used for the procurement of military equipment, which is provided by the member statesthough the NATO Airborne Early Warning Force, a fleet of radar-bearing aircraft designed to protect against a surprise low-flying attack, was funded jointly.

A serious issue confronting NATO in the early and mid-1950s was the negotiation of West Germanys participation in the alliance. The prospect of a rearmed Germany was understandably greeted with widespread unease and hesitancy in western Europe, but the countrys strength had long been recognized as necessary to protect western Europe from a possible Soviet invasion. Accordingly, arrangements for West Germanys safe participation in the alliance were worked out as part of the Paris Agreements of October 1954, which ended the occupation of West German territory by the western Allies and provided for both the limitation of West German armaments and the countrys accession to the Brussels Treaty. In May 1955 West Germany joined NATO, which prompted the Soviet Union to form the Warsaw Pact alliance in central and eastern Europe the same year. The West Germans subsequently contributed many divisions and substantial air forces to the NATO alliance. By the time the Cold War ended, some 900,000 troopsnearly half of them from six countries (United States, United Kingdom, France, Belgium, Canada, and the Netherlands)were stationed in West Germany.

Frances relationship with NATO became strained after 1958, as President Charles de Gaulle increasingly criticized the organizations domination by the United States and the intrusion upon French sovereignty by NATOs many international staffs and activities. He argued that such integration subjected France to automatic war at the decision of foreigners. In July 1966 France formally withdrew from the military command structure of NATO and required NATO forces and headquarters to leave French soil; nevertheless, de Gaulle proclaimed continued French adherence to the North Atlantic Treaty in case of unprovoked aggression. After NATO moved its headquarters from Paris to Brussels, France maintained a liaison relationship with NATOs integrated military staffs, continued to sit in the council, and continued to maintain and deploy ground forces in West Germany, though it did so under new bilateral agreements with the West Germans rather than under NATO jurisdiction. In 2009 France rejoined the military command structure of NATO.

From its founding, NATOs primary purpose was to unify and strengthen the Western Allies military response to a possible invasion of western Europe by the Soviet Union and its Warsaw Pact allies. In the early 1950s NATO relied partly on the threat of massive nuclear retaliation from the United States to counter the Warsaw Pacts much larger ground forces. Beginning in 1957, this policy was supplemented by the deployment of American nuclear weapons in western European bases. NATO later adopted a flexible response strategy, which the United States interpreted to mean that a war in Europe did not have to escalate to an all-out nuclear exchange. Under this strategy, many Allied forces were equipped with American battlefield and theatre nuclear weapons under a dual-control (or dual-key) system, which allowed both the country hosting the weapons and the United States to veto their use. Britain retained control of its strategic nuclear arsenal but brought it within NATOs planning structures; Frances nuclear forces remained completely autonomous.

A conventional and nuclear stalemate between the two sides continued through the construction of the Berlin Wall in the early 1960s, dtente in the 1970s, and the resurgence of Cold War tensions in the 1980s after the Soviet Unions invasion of Afghanistan in 1979 and the election of U.S. President Ronald Reagan in 1980. After 1985, however, far-reaching economic and political reforms introduced by Soviet leader Mikhail Gorbachev fundamentally altered the status quo. In July 1989 Gorbachev announced that Moscow would no longer prop up communist governments in central and eastern Europe and thereby signaled his tacit acceptance of their replacement by freely elected (and noncommunist) administrations. Moscows abandonment of control over central and eastern Europe meant the dissipation of much of the military threat that the Warsaw Pact had formerly posed to western Europe, a fact that led some to question the need to retain NATO as a military organizationespecially after the Warsaw Pacts dissolution in 1991. The reunification of Germany in October 1990 and its retention of NATO membership created both a need and an opportunity for NATO to be transformed into a more political alliance devoted to maintaining international stability in Europe.

After the Cold War, NATO was reconceived as a cooperative-security organization whose mandate was to include two main objectives: to foster dialogue and cooperation with former adversaries in the Warsaw Pact and to manage conflicts in areas on the European periphery, such as the Balkans. In keeping with the first objective, NATO established the North Atlantic Cooperation Council (1991; later replaced by the Euro-Atlantic Partnership Council) to provide a forum for the exchange of views on political and security issues, as well as the Partnership for Peace (PfP) program (1994) to enhance European security and stability through joint military training exercises with NATO and non-NATO states, including the former Soviet republics and allies. Special cooperative links were also set up with two PfP countries: Russia and Ukraine.

The second objective entailed NATOs first use of military force, when it entered the war in Bosnia and Herzegovina in 1995 by staging air strikes against Bosnian Serb positions around the capital city of Sarajevo. The subsequent Dayton Accords, which were initialed by representatives of Bosnia and Herzegovina, the Republic of Croatia, and the Federal Republic of Yugoslavia, committed each state to respecting the others sovereignty and to settling disputes peacefully; it also laid the groundwork for stationing NATO peacekeeping troops in the region. A 60,000-strong Implementation Force (IFOR) was initially deployed, though a smaller contingent remained in Bosnia under a different name, the Stabilization Force (SFOR). In March 1999 NATO launched massive air strikes against Serbia in an attempt to force the Yugoslav government of Slobodan Miloevi to accede to diplomatic provisions designed to protect the predominantly Muslim Albanian population in the province of Kosovo. Under the terms of a negotiated settlement to the fighting, NATO deployed a peacekeeping force called the Kosovo Force (KFOR).

The crisis over Kosovo and the ensuing war gave renewed impetus to efforts by the European Union (EU) to construct a new crisis-intervention force, which would make the EU less dependent on NATO and U.S. military resources for conflict management. These efforts prompted significant debates about whether enhancing the EUs defensive capabilities would strengthen or weaken NATO. Simultaneously there was much discussion of the future of NATO in the post-Cold War era. Some observers argued that the alliance should be dissolved, noting that it was created to confront an enemy that no longer existed; others called for a broad expansion of NATO membership to include Russia. Most suggested alternative roles, including peacekeeping. By the start of the second decade of the 21st century, it appeared likely that the EU would not develop capabilities competitive with those of NATO or even seek to do so; as a result, earlier worries associated with the spectre of rivalry between the two Brussels-based organizations dissipated.

North Atlantic Treaty Organization: flag-raising ceremony, 1999NATO photosDuring the presidency of Bill Clinton (19932001), the United States led an initiative to enlarge NATO membership gradually to include some of the former Soviet allies. In the concurrent debate over enlargement, supporters of the initiative argued that NATO membership was the best way to begin the long process of integrating these states into regional political and economic institutions such as the EU. Some also feared future Russian aggression and suggested that NATO membership would guarantee freedom and security for the newly democratic regimes. Opponents pointed to the enormous cost of modernizing the military forces of new members; they also argued that enlargement, which Russia would regard as a provocation, would hinder democracy in that country and enhance the influence of hard-liners. Despite these disagreements, the Czech Republic, Hungary, and Poland joined NATO in 1999; Bulgaria, Estonia, Latvia, Lithuania, Romania, Slovakia, and Slovenia were admitted in 2004; and Albania and Croatia acceded to the alliance in 2009.

Meanwhile, by the beginning of the 21st century, Russia and NATO had formed a strategic relationship. No longer considered NATOs chief enemy, Russia cemented a new cooperative bond with NATO in 2001 to address such common concerns as international terrorism, nuclear nonproliferation, and arms control. This bond was subsequently subject to fraying, however, in large part because of reasons associated with Russian domestic politics.

Events following the September 11 terrorist attacks in 2001 led to the forging of a new dynamic within the alliance, one that increasingly favoured the military engagement of members outside Europe, initially with a mission against Taliban forces in Afghanistan beginning in the summer of 2003 and subsequently with air operations against the regime of Muammar al-Qaddafi in Libya in early 2011. As a result of the increased tempo of military operations undertaken by the alliance, the long-standing issue of burden sharing was revived, with some officials warning that failure to share the costs of NATO operations more equitably would lead to unraveling of the alliance. Most observers regarded that scenario as unlikely, however.

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