The Topovske Šupe concentration camp (; , ) was a concentration camp located on the outskirts of Belgrade which was operated by Nazi Germany with the help of Milan Nedić's quisling government during World War II. Located in the neighborhood of Autokomanda, on the site of an old military base, the camp held between 5,000 and 6,500 inmates from its establishment in August 1941 until its closure that December. About 4,300 inmates were killed during its operation, of whom 3,000 were killed as hostages and 1,300 as suspected anti-fascists. Background On 6 April 1941, Axis forces invaded the Kingdom of Yugoslavia. Poorly equipped and poorly trained, the Royal Yugoslav Army was quickly defeated. The country was then occupied and dismembered, with the Wehrmacht establishing the Territory of the Military Commander in Serbia under a government of military occupation. The territory included most of Serbia proper, with the addition of the northern part of Kosovo (centred on Kosovska Mitrovica), and the Banat. It was the only area of partitioned Yugoslavia in which the German occupants established a military government, to exploit the key rail and riverine transport routes that passed through it, and its valuable resources, particularly non-ferrous metals. The Military Commander in Serbia appointed Serbian puppet governments to "carry on administrative chores under German direction and supervision". On 29 August 1941, the Germans appointed the Government of National Salvation under General Milan Nedić, to replace the short-lived Commissioner Administration. A pre-war politician who was known to have pro-Axis leanings, Nedić was selected because the Germans believed his fierce anti-Communism and military experience could be used to quell an armed uprising in the Serbian region of Šumadija. Unable to bring reinforcements due to the need to send soldiers to the Eastern Front, the Germans responded to the revolt by declaring that one-hundred Serbs would be executed for every German soldier killed and that fifty would be executed for every German soldier wounded. By October 1941, this policy had resulted in the deaths of 25,000 Serbs. The Germans also targeted Jews, who were subjected to forced labour, punitive taxing, and restrictive decrees. Jews were also registered with German authorities and forced to wear identifying armbands while Jewish property was confiscated. They, and to a lesser degree Romanis, were targeted on racial grounds, although most were not killed outright. Following the start of the anti-German uprising, German propaganda began associating Jews with Communism