Soviet soldiers escort a group of captured Hungarian prisoners of war in a street in Budapest. In the background is a destroyed German Panzer IV/70; January 1945. 

A column of POWs

203 mm howitzer M1931 (B-4) was a 203 mm (8 inch) Soviet heavy howitzer. These guns were used with success against heavy German fortifications and in urban combat for crushing protected buildings and bunkers. This weapon was used right up until the end of the war in the Battle of Berlin where the Red Army would fire these guns at point blank range to smash German fortifications with their heavy 203mm shells.

Soviet artillery, Voronezh front

Soviet soldiers surround and escort a captured German soldier