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 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 (around Kosovska Mitrovica), and the Banat. It was the only area of occupied Yugoslavia in which the Germans established a military government. This was done to exploit the key rail and riverine transport routes that passed through it, and because of 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". The Germans also promoted the fascist Yugoslav National Movement ("Zbor"), led by Dimitrije Ljotić.