Key Facts
- D-Day
- 6 June 1944
- Troops on D-Day
- ~160,000 crossed the English Channel
- Total Allied troops in France
- Over 2 million by end of August 1944
- Airborne assault
- 1,200 planes preceded the amphibious landing
- Naval vessels involved
- More than 5,000
- Duration
- 6 June – 30 August 1944 (~3 months)
Strategic Narrative Overview
On 6 June 1944, following a massive airborne drop and naval bombardment, Allied forces landed on five Normandy beaches. Progress was initially slow; Cherbourg fell on 26 June and Caen on 21 July. A German counterattack on 7 August failed catastrophically, trapping 50,000 soldiers in the Falaise pocket. A second Allied invasion from the Mediterranean, Operation Dragoon, launched on 15 August, further compressed German defenses and prompted the Liberation of Paris on 25 August.
01 / The Origins
By 1943 the Allies agreed at the Trident Conference in Washington to mount a cross-channel assault to relieve pressure on the Eastern Front and open a new front against Nazi Germany in Western Europe. Supreme command was entrusted to U.S. General Dwight D. Eisenhower. Germany had fortified the French coast with the Atlantic Wall under Field Marshal Erwin Rommel, anticipating an Allied landing but misled as to its precise location and timing.
03 / The Outcome
German forces retreated east across the Seine on 30 August 1944, marking the formal end of Operation Overlord. The Allies had successfully liberated France and positioned themselves to advance into Germany. The operation demonstrated the effectiveness of combined arms warfare and Allied coordination, shifting the strategic balance decisively against Nazi Germany on the Western Front.
Belligerents & Mobilization Analysis
Side A
1 belligerent
Dwight D. Eisenhower, Bernard Montgomery.
Side B
1 belligerent
Erwin Rommel.
Kinetic Engagement Axis
Scroll horizontally to view full axis. Events plotted relatively.