In April 1941, Germans, Italians, Hungarians and Bulgarians made quick work of the Royal Yugoslav army. They captured Yugoslavia in 11 days and partitioned it among themselves and newly formed client states: The Independent State of Croatia and Nedić's Serbia. A complex guerrilla uprising of communist-led Partisans, commanded by Josip Broz Tito, soon broke out. A more ambivalent, predominantly Serb paramilitary movement of royalist Chetniks both fought the occupying forces and collaborated with them against the communists. The Partisans eventually gained recognition from the Allies as the sole resistance movement. With help from both the Soviets and the Western Allies, they turned into a formidable fighting force and successfully liberated the country.