"21st Army Group" . . . . . . . "General Officer Commanding-in-Chief 21st Army Group" . . . . . . . . . . "21st Army Group" . . "9,248 tanks" . "1945" . . . . . . . . . . . . "1,600 aircraft (2nd Tactical Air Force)" . . . "Army Group" . . "GOC-in-C 21st Army Group" . . "British 21st Army Group" . . . . "21st Army Group's" . . . . . "1,020,581 officers and men (excluding US forces)" . . . . "Headquarters 21st Army Group" . . . . "XXI Army Group" . . "21st Army" . "GOC-in-C, 21st Army Group" . . "21st Army Group" . . "6,584 artillery pieces" . . . . "21st" . . . . . "British and Canadian 21st Army Group" . . "1943" . . . .