During the 1941 collapse of the Kingdom of Yugoslavia under the Axis invasion in the April War, the Independent State of Croatia was created. It was ruled by the extreme nationalist Ustaša regime. The Ustaša quickly started with the systematic persecution of the Jews, modeled after the Nazi Germany approach, and at times even more brutal. Racial laws were introduced, Jewish property was confiscated, and the Jews were subjected to mass arrests and deportations to death camps in Croatia and abroad.