Operations Taxable, Glimmer and Big Drum were tactical military deceptions conducted on 6 June 1944 in support of the Allied landings in Normandy. The operations formed the naval component of Operation Bodyguard, a wider series of tactical and strategic deceptions surrounding the invasion. Small boats, along with aircraft from RAF Bomber Command, simulated invasion fleets approaching Cap d'Antifer, Pas-de-Calais and Normandy. Glimmer and Taxable played on the German belief, amplified by Allied deception efforts over the preceding months, that the main invasion force would land in the Calais region. Big Drum was positioned on the western flank of the real invasion force to try to confuse German forces about the scale of the landings. These operations complemented Operation Titanic, which wa