The Army was given the task to advance towards Dresden and Bautzen on 16 April. Although the Army managed to advance, it had insufficient reinforcements of its own and the planned Soviet reinforcements were delayed, which made it vulnerable to the German counterattacks. The Second Army suffered very heavy losses at the Battle of Bautzen during April 22–26, with 18,232 dead or missing (22% of total combat personnel), and over 50% of armor. The battle was one of the most costly in terms of lives in the history of Polish military.