From the region north of Dresden and Görlitz over a large arc to the area of Breslau, the 1st Ukrainian Front counted 71 rifle divisions and three cavalry divisions, as well as nine tank and mechanized corps. The bulk of 1st Ukrainian Front's forces were massed north of Dresden for a direct advance on Prague and included the 3rd and 4th Guards Tank Armies. The primary opponent of this thrust would be the 4th Panzer Army. To the east, five combined-arms armies and the Polish 2nd Army made up the left (eastern) wing of the front, the advance of which would pressure mainly the German 17th Army. Facing the main 1st Ukrainian Front advance were the Ore Mountains, as well as the urban areas of Dresden and Bautzen.