In late March, 3rd Shock was positioned on the Oder River, and was being massively reinforced with supporting arms for the battle for Berlin. As of April 15 it was deployed in the Küstrin bridgehead on an 11km front from Ortwig to Letschin. The main attack would be made on the left flank on a 6km front from Amt Keinitz to Letschin. The 364th at this time, like the rest of the Front's rifle divisions, had a strength of somewhere between 5,000 and 6,000 personnel. 7th Corps was in the second echelon, behind the 79th Rifle and 12th Guards Rifle Corps. The main offensive began on April 16, and during the next day the Corps crossed the Oder before concentrating north of Letschin. During the fighting on April 18, 3rd Shock completed the breakthrough of the German's second defensive zone, while 7th Corps remained in reserve.