C. They wanted to ensure that Japan would not fall to communism.
Answer:
the boston massacre and the repeal of taxes under the townshend acts began a period of calm across the colonies.
Explanation:
the US was very concerned because of the fact that Cuba had nuclear missiles within range of Washington D.C. and the leader of Cuba was being heavily supported by the Russians which at this time the US were involved in a cold war with where each side was moments from launching nuclear missiles at one another.
(2) devolved advanced architectural techniques