How did fidel castro's relationship with the us worsen as time went on?

Brainliesttt !me : ) describe the event : increase in islamic extremis in the middle east

What features of the electoral system support the existence of a two party system and analyze one of these features and explain its role

How did the russian revolution impact world war i? a) the russians required the allied powers to come to their aid and defeat the radical groups. b) the russians pulled out from the war, enabling the germans to focus on the western front. c) the russians created new technological advancements that were used by the allied powers to win. d) the russians created a new communist government that aligned with the central powers instead.