The surprise attack upon Pearl harbor .
the bombing of hiroshima
Holocaust
it wold war was bad
There was a war.
World War I
The assassination of Archduke Ferdinand was a major event that led to WW1
It was a war so it was obviously dangerous. Think guns and bombs.
World War Two.
Two different topics/questions here; "Local Struggle..." and "Major event of the cold war..." 1. The VN War wasn't a local struggle. It involved the world powers and potential atomic war. 2. Any SHOOTING war during the cold war was a major event.
World War II.
the great depression
World War 1