Four points are needed to answer this question or if you cannot remember four points you can then expand on two points in enough detail. Point 3 would be worth 2 marks.* USA banned all trade with Cuba and in January 1961 cut off diplomatic relations* In April 1961 President Kennedy made available weapons and transport for an attempt to overthrow Castro.* In this invasion, 1,500 Cuban exiles landed at the Bay of Pigs to find themselves faced with 20,000 Cuban troops armed with weapons supplied by the USSR* In September 1961 Khrushchev publicly announced that he would provide arms to Cuba