Operation Overlord 75 Years On 6th June 1944, the Allies launched the greatest amphibious invasion in history. Codenamed "Overlord" but best know today as "D-Day", the operation saw Allied forces landing on the beaches of Normandy in Nazi-occupied France in huge numbers. By the end of the day, the Allies had established a foothold on the French coastline. For the 75th Anniversary, 5.11 are producing a limited edition rubber patch as shown. Diameter 75mm with hook and loop backing. A £5 donation will be made to The Royal British Legion with each patch sold.