Conversation so far:
when did world war 2 start and end
The Second World War started on 1 September 1939 and ended on 2 September 1945.
what happened on 1 September 1939 in world war 2
The Second World War started on 1 September 1939 with Hitler's invasion of Poland.
how long did world war 2 last
The Second World War lasted six years and one day.
how did world war 2 end
World War 2 ended with the unconditional surrender of the Axis powers.

Question: is there a holiday to celebrate the end
Self-contained rewrite: is there a holiday to celebrate the end of world war 2