Liberation of Yugoslavia
The Red Army entered Yugoslavia at the plea of the National Committee for the Liberation of Yugoslavia (NKOY) which administered the partisan-controlled territories. The Chairman of the NKOY and Supreme Commander of the People's Liberation Army of Yugoslavia Josip Broz Tito flew to Moscow to negotiate joint actions for the liberation of Serbia and the Yugoslav capital of Belgrade in September 1944. A group of Soviet troops reached the Bulgarian-Yugoslav border and launched the Belgrade Offensive in late September.
The operation (September 28, 1944 – October 20, 1944) was conducted by the 3rd Ukrainian Front (Fyodor Tolbukhin), part of the 2nd Ukrainian Front (Rodion Malinovsky), and units of the People's Liberation Army of Yugoslavia (Josip Broz Tito).
In a course of operation they pierced the enemy’s defense in the Serbian Carpathians, encircled and defeated the main forces of the German Army Group Serbia. Belgrade and the greater part of Serbia were liberated by October 20, 1944. The people of Yugoslavia warmly welcomed the Soviet soldiers as liberators. During the Belgrade Offensive the Red Army lost 35,000 officers and soldiers, over 4,000 of them were killed.