The fall of France had not been anticipated in Government planning and the encirclement of a large part of the British Expeditionary Force into the Dunkirk pocket resulted in a hasty evacuation of that part of the B.E.F following the abandonment of their equipment. The parlous state of affairs "no arms, no transport, no equipment" in the face of the threat of imminent invasion of Britain by Nazi forces was recorded by the Chief of the Imperial General Staff Field Marshal Sir Alan Brooke, 1st Viscount Alanbrooke in his diary entries of the 1/2 July 1940.
The fall of France and its impact on British military planning were unexpected, leading to a hasty evacuation of troops from Dunkirk due to lack of resources. The dire situation faced by the British forces was documented by Field Marshal Sir Alan Brooke in his diary entries on July 1/2, 1940.