<Li> 1984 general election </Li> <Ul> <Li> Cold War </Li> <Li> Libya bombing </Li> <Li> Challenger disaster </Li> <Li> Iran--Contra affair </Li> <Li> "Tear down this wall!" </Li> <Li> INF Treaty </Li> </Ul> <Li> Iran--Contra affair </Li> <Li> "Tear down this wall!" </Li>

Who was president of the united states when the berlin wall fell