 Approximately 2,300 tanks and assault guns were committed to the battle, of which only 100 to 120 crossed the Seine at the end of the campaign.While German forces reported only 481 tanks destroyed between D-day and 31 July, research conducted by No.2 Operational Research Section of 21st Army Group indicates that the Allies destroyed around 550 tanks in June and July and another 500 in August, for a total of 1,050 tanks destroyed, including 100 destroyed by aircraft.