Both 2nd Panzer and Panzer Lehr moved forward from Bastogne after 21 December. The 26th VG received one panzergrenadier regiment on Christmas Eve for its attack the next day. Because it lacked troops and those of the 26th VG Division were tired, the XLVII Panzer Corps concentrated its attack on several locations on the west side. The attack was defeated and all the tanks destroyed. The next day, 26 December, Gen. Patton's 4th Armored Division broke through and opened a passage to Bastogne.