The Yugoslav Army, commonly the Royal Yugoslav Army, was the land warfare military service branch of the Kingdom of Yugoslavia. It existed from the Kingdom's formation in December 1918, until its surrender to the Axis powers on 17 April 1941. Aside from fighting along the Austrian border in 1919 and 1920 related to territorial disputes, and some border skirmishes on its southern borders in the 1920s, the JV was not involved in fighting until April 1941 when it was quickly overcome by the German-led invasion of Yugoslavia.
Yugoslav soldiers in 1925
15-year-old King Peter II on Mount peak Triglav 2,863.65 metres (9,395.2 ft), near the tripoint border of the Kingdom Yugoslavia, Fascist Italy and Nazi Germany, on August 12, 1939; 20 days later, Germany invaded Poland.