After world war ii, the soviet union designated many of the countries of eastern europe as states

I believe the blank you're looking for is satellite.

 Communist, satellite states

Explanation:  After the Second World War and the division of interest zones, the Soviet Union had an impact on the countries of Eastern Europe.  It achieved its influence by imposing communism, through the so-called free elections, which were rigorously controlled by Soviet intelligence, officials and politicians. In this way, satellite states in Eastern Europe were created, which carried out the political will of the Soviet Union, and every attempt to rebel against communism was treated as subversive and was suppressed by police or military intervention.

in 550 b.c.e. cyrus the great, the leader of the persians, conquered the medes and united the iranian people under one ruler for the first time. cyrus became the first king of the persian empire and went on to establish one of the largest empires in world.