On the morning of 27th May, Lieut.-General Sir Ronald Adam commenced the organisation of the Dunkirk bridgehead. Its perimeter was to extend from Gravelines, south-eastward to the Canal de la Colme, along the canal to Bergues and thence by Fumes and Nieuport to the Belgian coast. In fact, however, the French were already evacuating Gravelines and the western part of the perimeter, and were falling back to the line of the Mardyck Canal, from the sea, to Spyker on the Canal de la Colme. The French were to be responsible for the defence of the western half of the perimeter as far as Bergues inclusive, and the British for the eastern half. The position of the Belgian Army was now so obscure that its inclusion in the bridgehead was not taken into account.1