During World War II, in 1941, Nazi Germany invaded and occupied Yugoslavia. Central Serbia was put under the Military Administration in Serbia (MAS), Kosovo was annexed by the Italian protectorate of Albania, and eastern Serbia was occupied by Bulgaria. The Vojvodina region was divided into three occupation zones: Banat was placed under direct German control as an autonomous region within the area governed by the MAS, Bačka was annexed by Horthy's Hungary and Syrmia was annexed by the Independent State of Croatia.