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
No. 6 Commando No. 6 Commando took part in was Operation Torch, the Allied landings in Algeria in November 1942. Later, it joined the advance into Tunisia in 1943. On 6 June 1944, it participated in the D-Day landings in France as part of Operation Overlord, coming ashore with the 1st Special Service Brigade which was tasked with linking up with the troops from the 6th Airborne Division on the eastern flank of Sword. Following this, No. 6 Commando were used in the defence of the beachhead and the subsequent operations to break out from Normandy before being withdrawn with the rest of