The Ustase were pro-German Croatian fascists. After the Axis invasion and partition of Yugoslavia in April 1941, the Germans established a dependent Croatian state. Led by Ante Pavelic, the Croatian regime began a genocidal campaign against minority groups and killed hundreds of thousands of Serbs and tens of thousands of Jews in Croatia. This possibly staged Ustase footage shows Ustase paramilitary forces rounding up villagers in rural Croatia. In May 1945, Yugoslav partisans under Marshal Tito--with Soviet support--overturned the Croatian regime.