Wat r some ways the world changed because of world war II?

Question: Wat r some ways the world changed because of world war II!?

map wise!.
how the map of Europe changed!.
Geography wise and population wise
:D
thxWww@QuestionHome@Com

Best Answer - Chosen by Asker:

Population wise, the population of the world reduced by a great number because of the fallen soldiers and the Holocaust mass killing!.
Geography wise, Germany was divided into two!.Www@QuestionHome@Com