During the Second World War, Burnham was the training base for one of the first Commando battalions, led by Lt-Col Dunford-Slater. From 1943 to 1945 it was HMS St Mathew, base for up to 1400 sailors training on minor landing craft. The navy occupied the Royal Corinthian Yacht Club and a site at Creeksea. Unconnected with these activities, the area often witnessed Luftwaffe crashes and bomb, mine and V-weapon explosions – German parachute mines caused fatalities in the town and at nearby Southminster.