The Battle of Bautzen was one of the last battles on the Eastern Front of World War II. It took place on the extreme southern flank of the Spremberg-Torgau Offensive, seeing days of pitched street fighting between forces of the Polish Second Army together with elements of the Soviet 52nd Army and 5th Guards Army on one side and remnants of the German 4th Panzer and 17th Armies on the other. Part of Marshal Ivan Konev's 1st Ukrainian Front push toward Berlin, the battle was fought in the town of Bautzen and its environs along the Bautzen–Niesky line. Major combat took place from April 21 to April 26, 1945, but isolated engagements continued until April 30. The Polish Second Army under General Karol Świerczewski suffered heavy losses, but with the aid of Soviet reinforcements prevented the German forces from breaking through to their rear. According to one historian the Battle of Bautzen was one of the Polish Army's bloodiest battles. Both sides claimed victory and modern views as to who won the battle remain contradictory. After the fall of communism, Polish historians became critical of Świerczewski's command, blaming the near destruction of the Polish force on his incompetence and desire to capture Dresden.