3rd Ukrainian Front in the context of "4th Guards Army (Soviet Union)"

The Vienna offensive was an offensive launched by the Soviet 2nd and 3rd Ukrainian Fronts in order to capture Vienna, Austria, during World War II. The offensive lasted from 16 March to 15 April 1945. After several days of street-to-street fighting, the Soviet troops captured the city on 13 April 1945.

The second Jassy–Kishinev offensive, named after the two major cities, Jassy and Kishinev, in the staging area, was a Soviet offensive against Axis forces, which took place in Eastern Romania from 20 to 29 August 1944 during World War II. The 2nd and 3rd Ukrainian Fronts of the Red Army engaged Army Group South Ukraine, which consisted of combined German and Romanian formations, in an operation to reoccupy Bessarabia and destroy the Axis forces in the region, opening the way into Romania and the Balkans.

The offensive resulted in the encirclement and destruction of the German forces, allowing the Soviet Army to resume its strategic advance further into Eastern Europe. It also pressured Romania to switch allegiance from the Axis powers to the Allies. For the Germans, this was a massive defeat, which can be compared to the defeat at Stalingrad.