22 March 1945: 27 Me 262's of II./JG 7, led by Major Theodor Weissenberger, attacked B-17s over Leipzig. Weissenberger and Obfw Heinz Arnold each claimed a B-17 downed of the 12 bombers claimed shot down by the unit (10 were lost by the 15th Air Force formation).[2] 23 March 1945: Heavy bombers of the USAAF 15th Air Force attacked refineries at Ruhland, where fuel production ceased completely after the attack.