As Commander-in-Chief Middle East Auchinleck, based in Cairo, held responsibility not just for North Africa but also for Persia and the Middle East. He launched an offensive in the Western Desert, Operation Crusader, in November 1941: despite some tactical reverses during the fighting which resulted in Auchinleck replacing the Eighth Army commander Alan Cunningham with Neil Ritchie, by the end of December the besieged garrison of Tobruk had been relieved and Rommel obliged to withdraw to El Agheila. Auchinleck appears to have believed that the enemy had been defeated, writing on 12 January 1942 that the Axis forces were "beginning to feel the strain" and were "hard pressed".