<Li> Kazakhstan famine of 1932 - 1933) </Li> <Ul> <Li> (Molotov--Ribbentrop Pact </Li> <Li> Great Patriotic War </Li> <Li> Operation Barbarossa </Li> <Li> Occupation of the Baltic states </Li> <Li> Soviet occupation of Bessarabia and Northern Bukovina </Li> <Li> Battle of Berlin </Li> <Li> Soviet invasion of Manchuria) </Li> </Ul> <Li> (Molotov--Ribbentrop Pact </Li> <Li> Great Patriotic War </Li>

What was the soviet union doing in eastern europe