Bognor Regis once part of the Mulberry floating harbours used by the Allies to invade the French coast on D-Day 6 June 1944. It was a part of the Mulberry harbour which broke free in a storm on 4 June, the day before it was due to go over the channel to Arromanche. This particular section of Mulberry was abandoned and did not make it across the Channel. It was washed up on the beach shortly after D-Day. It is clearly visible at low tide throughout the year. There are a number of Mulberry Harbour relics just off the coast of Pagham
D-Day naval deceptions the western flank of the true invasion fleet. This operation was intended to lend confusion as to the extent of the landings in Normandy. Glimmer and Taxable were very similar operations. They were executed in the early hours of 6 June 1944 whilst the invasion fleet was approaching Normandy. Taxable simulated an invasion force approaching Cap d'Antifer and Glimmer threatened Pas-de-Calais. By dropping chaff in progressive patterns, Royal Air Force (RAF) bombers were able to create the illusion of a large fleet on coastal radar screens. Beneath the chaff, small boats towed radar reflector balloons and simulated the radio traffic