change with the introduction of the P-51B Mustang. As the winter weather cleared, operations picked up again and the Americans launched Operation Argument (Big Week) on 20 February. Over the week Staiger shot down a further three aircraft. March's bombing target was mostly focused on Berlin, and he scored another five Viermots. After his Gruppenkommandeur, Klaus Mietusch, was injured on 8 March, he took up temporary command of III./JG 26 for three weeks in his absence, while still remaining as squadron leader of 12./JG 26 at the same time. April was to be Staiger's most successful month, claiming 8 aircraft. On 13 April he shot down a 364th Fighter Group Lockheed P-38 Lightning near Bitburg; the American pilots' remains were found in 1996. Five of these were on the 24th. III./JG 26 had been temporarily transferred to Munich, with very little to do except play cards. That morning however, the alarms sounded and the pilots (including Staiger) with only a few hours' sleep, took to the air nursing fearsome hangovers, sucking in the pure oxygen. Flying a heavily armed Me 109 with a 30mm MK108 cannon firing through the spinner, he managed to down 2 bombers in as many minutes, then another plus two Herausschüsse (formation separations) within minutes of each other a half-hour later. In May, a series of devastating raids crippled Germany's oil production, severely limiting flight operations. On 15 May he was promoted to command of the Fw 190-equipped I./JG 26, while Maj Karl Borris was away. In June all the Allied attention turned to France, and the Normandy invasion (Operation Overlord). Immediately fifteen Gruppen, including Staiger's I./JG 26, were rushed to the west. But, now fighting low-level combats and often up against 20:1 odds, they stood no chance. On 1 August, with Major Borris' return, Staiger transferred to take up command of II/JG 1 which had also been struggling through the French campaign. With the Allied breakout at the start of August, II./JG 1 soon retreated east of the Seine, then a week later back to the Reich to rebuild and re-equip. Indicative of the devastation, in its 10-weeks over Normandy, II./JG 1 had lost 106 aircraft (out of a nominal complement of 68) and 27 pilots killed, for 32 confirmed victories. It would not be fit for action for three months, not re-engaging in combat until 26 November 1944. Staiger led by example, shooting down