The belief that a country should maintain a strong military campaign and be prepared to use it aggressively to defend national interests. A) Imperialism
B) Militarism
C) Alliances
D) Nationalism

answer: ensure protection from communism

explanation:

the north atlantic treaty was largely dormant until the korean war initiated the establishment of nato to implement it, by means of an integrated military structure: this included the formation of supreme headquarters allied powers europe in 1951, which adopted the western union's military structures and plans.