July 25 - July 31, 1944. Generals Omar Bradley and George S. Patton drive a gap in the western section of the Normandy theater of battle and breakout of the Normandy region at Saint-Lô, Normandy, France. British General Bernard Montgomery commanding Twenty-first Army Group coordinated the Allies on east and west on the Normandy line to attack and tie up German forces. Using the 4th, 9th and 30th infantry divisions of VII Corps to punch the whole in the German line, the Allies coordinated bombing and armor support to end the stalemate and force the German left flank to turn. The 1st Infantry Division with the 2nd and 3rd Armored Divisions composed the explotation force. This success caused the Falaise Pocket to be created which was composed dislodged German forces. A general fall back of German forces in Normandy ensued from there to September 1944.