Castro became worried that the USA might launch another invasion. So he made an alliance with the USSR.The soviets bought sugar off Cuba so that Cuba didnt have to trade with Kennedy. Also Khruschev put a nuclear weapons site in Cuba, this meant that they were now within range of the US therefore giving them an advantage in the arms race.
Anh chang dep trai ngoi trong quan uong
I think it's The Cassini-Huygens mission
The Spanish Conquistidors!
The anwser to your question would be an monarchy