D-Day Preparations at Portsmouth

1944

Portsmouth and its dockyard played a central role in the preparations for D-Day, the Allied invasion of Normandy on 6 June 1944. General Dwight D. Eisenhower, the Supreme Allied Commander, established his advance headquarters at Southwick House, a few miles north of Portsmouth, and it was from there that the final order to launch the invasion was given. The dockyard at Portsea was a hive of activity in the months leading up to D-Day, repairing and fitting out the vast fleet of warships, landing craft, transports and support vessels that would carry the invasion force across the Channel. Portsea's harbour and the surrounding waters were packed with vessels in the days before the invasion. Troops, vehicles and supplies were assembled at embarkation points around Portsmouth Harbour, and many of the assault forces embarked from the hard at Portsea and neighbouring landing points. The scale of the operation was immense: Operation Neptune, the naval component of the invasion, involved over 6,000 vessels of all types. Portsmouth's geographical position, directly facing the Normandy coast across the Channel, made it the natural choice as a principal embarkation port. The dockyard workforce, already stretched by years of wartime production and repair, worked around the clock to ensure the invasion fleet was ready. The successful launch of D-Day from Portsmouth and the surrounding ports marked the beginning of the liberation of Western Europe.