(A) ** Entering into agreement and treaties with other countries provided additional securities for all
(B) The United States had to secure its borders from Communism from Cuban defectors.
(C) NATO gave the United States unlimited rights to wage war on smaller nations.
(D) Trade sanctions against the Soviets were not working so NATO became necessary.
EXPLANATIONS BELOW
Concept note-1: -The North Atlantic Treaty Organization was created in 1949 by the United States, Canada, and several Western European nations to provide collective security against the Soviet Union.
Concept note-2: -Overview. Formed in 1949 with the signing of the Washington Treaty, NATO is a security alliance of 30 countries from North America and Europe. NATO’s fundamental goal is to safeguard the Allies’ freedom and security by political and military means.
Concept note-3: -From its founding, NATO’s 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.