Who won the dictatorship of World War 2 and how?

World War 2 ENDED WITH THE DEFEAT OF THE NAZISM AND FASCISM. IT WAS THE USA AND USSR WHO WON THE WAR,the Americans called the amarican war because with their intervene the war ended and freed the nations.however, 2 opposed ideologies rose up so it gave birth to another war "the cold war" as both of the 2 wanted to establish their homogeneity on the world.