How and why did relations between the USA, USSR and Cuba change between 1958 and the beginning of the Cuban Missile Crisis of October 1962?

Cuba, the largest island in the Caribbean was situated only 90 miles from

Florida in southern USA. Americans owned most of the businesses,

banks and fruit plantations there as well as a large naval base..........

• The overthrow of the pro-American dictator General Batista in 1959 led

to a change in relations............... The new leader Fidel Castro nationalised

industries and banks thereby hurting US banking and business interests............

From 1959 to 1961 US relations with Cuba were frosty............ In 1961 the USA

broke off diplomatic relations with Cuba and cut off all trade links.............. Cuba

was economically dependent on the USA and Castro turned to the USSR

for trade................By 1962 over 80% of Cuba’s trade was with the USSR................ Cuba

exported sugar, fruit and tobacco and imported…