The Conflict

Ten west European countries joined with the United States and Canada to form NATO in 1949 as a military alliance intended to provide collective defense in the event of an attack by the Soviet Union. During the Cold War, NATO was countered by a similar alliance among the communist countries of Eastern Europe, which joined with the Soviet Union to form the Warsaw Pact. With the collapse of communist governments in the Soviet bloc between 1989 and 1991 and the dissolution of the Warsaw Pact, however, observers questioned NATO's mission in a post-Cold War world.

Political

• In the early 1990s NATO asserted that its collective defense mission remained relevant despite the fall of its major adversary. Reiterating its commitment to European security, NATO announced plans...