In November 1940, the Handley Page Halifax entered service with No. 35 Squadron at RAF Linton-on-Ouse. Its operational debut occurred on the night of 10–11 March 1941, when six Halifax bombers flew a bombing raid against Le Havre, targeting the area around the docks and any shipping that might be present. The existence of the Halifax was not officially acknowledged until July 1941, after it was used in a daylight attack on La Pallice, France, against the German battleship "Scharnhorst". At the end of 1941, the Halifax was withdrawn from daylight bombing operations after intensifying fighter opposition had increased the casualty rates to unsustainable levels.