The Scout movement in Yugoslavia was served by different organizations during the existence of the multi-ethnic state. Early 20th century Scouting in the Austro-Hungarian regions of what became Yugoslavia started in 1910, and in Serbia in 1911. The first Scout units in what was to become Yugoslavia were founded in 1911 by Dr. Miloš Popović, in Belgrade, Kragujevac, Vranje and Valjevo. A national organization in the Kingdom of Serbs, Croats and Slovenes was founded around 1920; it was among the 20 founding members of the World Organization of the Scout Movement (WOSM) in 1922 (until 1950). It was later renamed to Savez Skauta Kraljevine Jugoslavije. After World War II The outbreak of World War II saw the suspension of Scouting in Serbia and Montenegro in 1941, when Yugoslavia was occupied by the Germans. The Russian Scout association Русский Скаут went into exile after World War I, and continued where fleeing White Russian émigrés settled, establishing groups in Serbia. The organization had to stop its activities in 1941 after the German occupation of Serbia. It resumed its activities after World War II but was banned again by the communist government in 1946; thus it lost the membership in WOSM in 1948. Scouting in Yugoslavia was co-opted by the Josip Broz Tito government of the Socialist Federal Republic of Yugoslavia in 1950, at which time WOSM membership was forfeited, as the new organization did not meet all the criteria for membership, as there were very close connections with the communist government. In 1950 and 1951, individual Scout associations were founded in each constituent republics. The national organization was revived under the name Savez Izviđača Jugoslavije (Scout Association of Yugoslavia) on November 24, 1951, at a meeting held in Zagreb, Croatia. The Scout movement grew and thrived until the Yugoslav dissolution in 1991. In addition, the government of SFR Yugoslavia fostered their own Pioneer movement, the Pioniri - under the League of Communists of Yugoslavia through the League of Communist Youth of Yugoslavia. May 14 marked as the anniversary of the Scout Association, marking the anniversary of the May 1950 joint camp of the revived Scouts and the UPY. After SFR Yugoslavia The break-up of Yugoslavia led also to the partial dissolution of Savez Izviđača Jugoslavije; the associations of Bosnia and Herzegovina, Croatia, the Republic of Macedonia and Slovenia subsequently gained membership in WOSM. Serbia and Montenegro The Scout Association of Yugoslavia -