Definition: during the cold war, this was the portion of germany what existed as a socialist state and a "satellite" of the soviet union term: hint: the term starts with ea

East Germany

The official name of East Germany was the German Democratic Republic.  It was a communist state aligned in the orbit of the Soviet Union.  

The Allies of World War II divided Germany into four zones of control after the war -- each zone occupied by one of the Allied nations -- Britain, France, the USA, and the USSR.  The same thing was done for the city of Berlin, which was in the Soviet-controlled zone (East Germany).  East Berlin was governed under Soviet control, and West Berlin was governed by the western Allies -- Britain, France and the USA.  The British, French and American sectors were combined into West Germany (and West Berlin), and the eastern area became "East Germany," a satellite of the Soviet Union.