Operation Frankton: The Cockleshell Heroes 11-13 December 2020, £599 plus £50 per night single room supplement, where applicable. Places available. Operation Frankton was an Allied raid on shipping in the German occupied French port of Bordeaux in the Bay of Biscay during the Second World War. The raid was carried out by a small unit of Royal Marines known as the Royal Marines Boom Patrol Detachment (RMBPD), part of Combined Operations. The British Prime Minister Winston Churchill believed the mission shortened World War II by six months and Admiral Louis Mountbatten, the commander of Combined Operations, deemed the raid “the most courageous and imaginative of all the…