Konstantin "Kosta" Mušicki (; 7 April 1897 – 17 July 1946) was a Yugoslav brigadier general who commanded the collaborationist Serbian Volunteer Corps during World War II. He was captured by the British Army at the end of the war, but was subsequently handed over to the Yugoslav authorities, who tried and executed him for war crimes. Early life Kosta Mušicki was born on 7 April 1897 in Slavonski Brod, Austria-Hungary (now in Croatia) to Milutin and Jelena Mušicki (née Mihailović). An ethnic Serb, he began his military service in the Austro-Hungarian Army. He later married and had two children. During the interwar period, Mušicki served as an aide to King Alexander and Queen Maria. He joined the fascist Yugoslav National Movement (, Jugoslovenski narodni pokret, Zbor) following the king's assassination in 1934. World War II Mušicki was stationed in Slavonski Brod at the time of the Axis invasion of Yugoslavia in April 1941 and served as the Royal Yugoslav Army commander responsible for the railroad between Belgrade and Zagreb in the rank of colonel. He demonstrated his support for the Germans by helping their forces during the invasion. Yugoslavia was quickly conquered by the Axis powers and Mušicki remained in Slavonski Brod for several months after the conquest. He attempted to join the Ustaše Militia there, but was rejected. He went to Belgrade in mid-August, where he was received by Zbor leader Dimitrije Ljotić. On 6 October, Milan Nedić, the Prime Minister of the Axis-installed puppet Government of National Salvation, appointed Mušicki to lead the Serbian Volunteer Command (, SDK). Mušicki was involved in executing Serb civilians in the town of Čačak in December 1941. He and Milan Aćimović contacted Chetnik leader Draža Mihailović on 5 December, possibly in an effort to warn him in advance of the assault the Germans had planned, codenamed Operation Mihailovic. This action prompted the Germans to question Mušicki's loyalty. He was removed from command at the end of 1941 and imprisoned by the Germans, but was later freed at Nedić's intervention. In early 1943, the Serbian Volunteer Command was renamed the Serbian Volunteer Corps (, SDK), and placed under the direct command of General der Artillerie Paul Bader, the commanding general in Serbia. The SDK was not part of the SS, nor was it formally a part of the Wehrmacht. It was fed and clothed to German standards, with these expenses reimbursed to