In the Battle of France in June 1940, Norman Force was a formation of units of the British Expeditionary Force, following the Dunkirk evacuation (Operation Dynamo). On 12 June 1940, Lieutenant-General Sir Alan Brooke returned to France and next day, assumed command of all British troops in the country. He placed the British units fighting with the Tenth Army under the command of Lieutenant-General J. H. Marshall-Cornwall. This improvised formation was known as Norman Force and on 15 June comprised the 3rd Armoured Brigade of the 1st Armoured Division, the 157th (Highland Light Infantry) Brigade, 71st Field Regiment R.A. and the Troop Carrying Company of the 52nd (Lowland) Infantry Division.