The German Nazis were defeated by the allies. Naziism was not defeated, and in fact still exists today.
The South was defeated in the WBTS. Slavery did not end with the defeat of the South, ended in America after the 13th was passed, but slavery has not been ended and in fact still exists today.
The Soviets were defeated in an economic contest. Communism was not ended with the collapse of the Eastern block and the Soviet Empire, and still exists today.
Fascism was not defeated with the end of the Germans. Fascism was not defeated with the end of the Japanese imperialists. Fascism was not defeated with the toppling of Saddam Hussein. Fascism is alive and well today.