The London Controlling Section (LCS) was a British secret department established in September 1941, under Oliver Stanley, with a mandate to coordinate Allied strategic military deception during World War II. The LCS was formed within the at the offices of the War Cabinet, which was presided over by Winston Churchill as Prime Minister. At first the department struggled to have any impact, and Stanley spent time away from the office due to his wife's terminal illness. In June his post of Controlling Officer was handed over to Colonel John Bevan, who managed the LCS until the end of the war.