The Normandy Landings, launched on 6 June 1944 ("D-Day"), were the seaborne assault phase of Operation Overlord, the Allied campaign to liberate Nazi-occupied Western Europe. The assault itself carried the codename Operation Neptune and remains the largest amphibious operation in military history.
Allied forces landed on a roughly 80-kilometre stretch of the Normandy coast divided into five sectors: Utah and Omaha (United States), Gold and Sword (United Kingdom), and Juno (Canada). The landings were preceded overnight by airborne drops involving the U.S. 82nd and 101st Airborne Divisions and the British 6th Airborne Division, tasked with securing flanks, bridges, and causeways behind the beaches. Naval bombardment and air superiority supported the troops coming ashore from a fleet of several thousand vessels assembled in southern English ports.
Supreme command of Overlord was held by U.S. General Dwight D. Eisenhower as Supreme Allied Commander, with British General Bernard Montgomery commanding the ground forces (21st Army Group) during the initial phase. German defences formed part of the Atlantic Wall fortifications overseen by Field Marshal Erwin Rommel under the overall command of Field Marshal Gerd von Rundstedt.
Casualties on the first day were heaviest at Omaha Beach. Allied forces nonetheless established beachheads, linked them in the following days, and supplied the buildup through artificial Mulberry harbours towed across the Channel. The breakout from Normandy, completed by late August 1944 with the liberation of Paris on 25 August, decisively shifted the strategic balance in Western Europe alongside the Soviet Operation Bagration in the east.
For IR and Model UN contexts, the landings are frequently cited as a reference point for coalition warfare, combined-arms planning, and the political coordination behind the Tehran Conference (1943) commitment to open a second front. They also underpin postwar Franco-Allied commemorative diplomacy, including major anniversary summits in 1984, 1994, 2004, 2014, and 2024.
Example
On 6 June 2024, leaders including U.S. President Joe Biden, French President Emmanuel Macron, and Ukrainian President Volodymyr Zelensky gathered at Omaha Beach to mark the 80th anniversary of the Normandy Landings.
Frequently asked questions
Overlord was the overall Allied campaign to establish a foothold in northwest Europe in 1944; Neptune was its naval and amphibious assault component, which included the 6 June landings themselves.
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