What incident caused castro and cuba to become closely allied with russia?

Apush explain two forces that led to african american suffrage & public service despite southern resistance

What was gained through the gadsden purchase

What were the purposes of salt? check all of the boxes that apply. -to achieve peace -to protect the security of the united states -to form an alliance against communist nations - to stop the nuclear arms race - to give the united states an advantage over the soviet union