Operation Dynamo, the evacuation at Dunkirk from 26 May to 3 June, had rescued much of the fighting element of the BEF. Some combat units from the 1st Armoured Division, the Beauman Division and more than and line-of-communication troops, had been cut off in the south by the German dash to the sea. By the end of May, medical stores had been removed from Dieppe and a demolition party landed, ready to blow up the port infrastructure. A big depot at Le Havre had been run down by using it to feed troops in the area and removing the military stores not immediately needed. A reserve of motor transport collected at Rouen had been used as transport for improvised units and specialised ammunition had been moved from the reserve around Buchy but the removal of the huge quantity of ordinary ammunition accumulated there was impossible.