Bismarck's realpolitik meant that he: A) would always keep his promises
B) follow moral rules
C) would do whatever was necessary
D) wanted to help the common man

D)

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your answer would be 12 stories

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.