The battle of the Falaise Pocket, fought during the Second World War from 12–21 August 1944, was the decisive engagement of the Battle of Normandy. Taking its name from the pocket around the town of Falaise within which Army Group B, consisting of the German Seventh and Fifth Panzer Armies became encircled by the advancing Western Allies, the battle is also referred to as the Falaise Gap after the corridor which the Germans sought to maintain to allow their escape. The battle resulted in the destruction of the bulk of Germany's forces west of the River Seine and opened the way to Paris and the German border.
By the evening of 21 August, the pocket was closed for the last time, with around 50,000 Germans trapped inside. Although it is estimated that significant numbers managed to escape, German losses in both men and materiel were huge, and the Allies had achieved a decisive victory. Two days later Paris was liberated, and by 30 August the last German remnants had retreated across the Seine, effectively ending Operation Overlord.