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 (military term) originally set for June 5, 1944, but bad weather and heavy seas caused U.S. Army General Dwight David Eisenhower to delay until June 6 and "that" date has been popularly referred to ever since by the short title "D-Day". Because of the connotation with the invasion of Normandy, planners of later military operations sometimes avoided the term to prevent confusion. For example, Douglas MacArthur's invasion of Leyte began on "A-Day", and the invasion of Okinawa began on "L-Day". The Allies' proposed invasions of Japan would have begun on "X-Day" (on Kyūshū, scheduled for November 1945) and "Y-Day" (on Honshū, scheduled