Which event is most closely associated with the end of the Great Depression?

That event would be : The world war II

Before the world war 2, there were more than 25 % of unemployment Rate in the united States. During the world war 2, we reduced both tax and unemployment rate by creating a large number of military equipment which counted as a massive increase in the country's GDP. Not to mention that the Losers of the wars have to be responsible for all the expenses that happened during the war