Following the invasion of Europe in 1944, the Halifax resumed daylight bombing operations, performing semi-tactical strikes upon enemy troop concentrations, gun emplacements, and strongpoints of the Atlantic Wall defences along the French coast with a reportedly high degree of accuracy. Other common targets were enemy communications and the launch sites for V-1 flying bombs. Bombing activity became increasingly brazen throughout late 1944 as the "Luftwaffe" became incapable of putting up effective opposition against them. The Halifax also found itself being increasingly tasked with transport duties around this time; in one instance, around half a million gallons of petrol was delivered to Brussels in support of the advancing Second Army, then engaged in heavy fighting at Arnhem.