Answer :
Fidel Castro part of communism made the people think he was good when the people elected him he took many of the rights of Cuban citizens he who did not agree with him was tortured beaten up or killed he encouraged kids from schools in Cuba to spy on their parents he wanted Cuba so European communist could smuggle missles and weapons to Cuba and target U.S.A when he died he passed his bargain to his brother. and also U.S.A didn't want to take part of this crisis, and he also wanted to take over the Panama canal.
This all started from castro studying law in the university of havana , he then began his career in politics and was a powerful figure in cuban politics . He then became leader because of the cuban revolution.