The offensive to capture central Germany and Berlin started on 16 April with an assault on the German front lines on the Oder and Neisse rivers. After several days of heavy fighting the Soviet 1BF and 1UF punched holes through the German front line and were fanning out across central Germany. By 24 April, elements of the 1BF and 1UF had completed the encirclement of the German capital and the Battle of Berlin entered its final stages. On 25 April the 2BF broke through the German 3rd Panzer Army's line south of Stettin. They were now free to move west towards the British 21st Army Group and north towards the Baltic port of Stralsund. The 58th Guards Rifle Division of the 5th Guards Army made contact with the US 69th Infantry Division of the First Army near Torgau, Germany at the Elbe river.