1st Army (Yugoslavia)

The 1st Army was a Royal Yugoslav Army formation which commanded four divisions during the German-led Axis invasion of the Kingdom of Yugoslavia in April 1941 during World War II. It was commanded by General Milan Rađenković, and was responsible for the area between the Danube and the Tisza. It was part of 2nd Army Group.

Command
1st Army command, April 1941:
 * Commander - General Milan Rađenković
 * Chief of Staff - Brigadier Todor Milicević
 * Rear area commander - Lt General Dobrosav Milenković

April 1941

 * Yugoslavian 1st Army - General Milan Rađenković
 * 7th "Potiska" Infantry Division - Lt General Bozidar Jovanović
 * 25th Infantry Regiment
 * 34th Infantry Regiment
 * 51st Infantry Regiment
 * 7th Artillery Regiment
 * Cavalry Battalion
 * Engineer Battalion
 * Anti-tank company
 * Machinegun company
 * Anti-Aircraft company
 * 3rd Cavalry Division - Lt General Žarko Majstorović
 * 3rd Cavalry Regiment
 * 51st Cavalry Regiment
 * 66th Cavalry Regiment
 * 3rd Artillery Battalion
 * 3rd (motorized) Infantry Battalion
 * 3rd Motorcycle Battalion
 * 3rd Engineer Squadron
 * 3rd Anti-aircraft Squadron
 * 56th Army Artillery Regiment
 * 1st Anti-aircraft Battalion
 * 1st Army Anti-aircraft Company

Invasion of Yugoslavia
Germany invaded Yugoslavia on 6 April 1941. The German invasion followed a coup d'état that overthrew the country's pro-German government of Regent Prince Paul and replaced him with the more independent King Peter II. Germany's allies Italy, Hungary, and Bulgaria soon joined or provided support for the invasion.

Yugoslavia quickly mobilized its forces and was able to field some 340,000 men in six armies. The Yugoslavian Royal Army consisted of six field armies: The Yugoslavian First Army, the Yugoslavian Third Army, the Yugoslavian Fourth Army, the Yugoslavian Fifth Army, the Yugoslavian Sixth Army, and the Yugoslavian Seventh Army.

The Yugoslavian First Army guarded the eastern border during the invasion of Yugoslavia. The area it defended was roughly centered on the city of Subotica. The Yugoslavian First Army faced the Hungarian Third Army. By the time the Hungarians crossed the border on or about 14 April, the Germans had been attacking Yugoslavia for over a week and Belgrade had already fallen. Because of the Hungarian delay, the First Army did not see as much action as the other Yugostavian armies.

On 17 April, eleven days after the German invasion began, the Royal Yugoslav Army surrendered unconditionally.