<Li> Soviet invasion of Manchuria) </Li> <Ul> <Li> Soviet deportations </Li> <Li> Soviet famine of 1946--47 </Li> <Li> Cold War </Li> <Li> Korean War </Li> </Ul> <Li> Soviet famine of 1946--47 </Li> <Tr> <Th> 1953--1964 Post-Stalin era </Th> </Tr>

During the 1970s and 1980s which of the following most significantly weakened the soviet bloc