How did the assasination of archduke ferdinand and the alliance system begin world war 1

the answer is a. laws were enacted in the aftermath of the plot to make it harder to free slaves,increasing sectionalism

do u have any answer choices man?

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.