British Armoured formations of World War II In April 1939, the Mobile Division was renamed the 1st Armoured Division and the Mobile Division (Egypt) was named the Armoured Division (Egypt) on the outbreak of war, before being renamed the 7th Armoured Division on 16 February 1940. Following the outbreak of war, the headquarters of the 2nd Armoured Division was activated on 15 December 1939. The first troops, however, were only attached to the division in the following month and then in part from forces released from the 1st Armoured Division following a divisional reorganisation. During 1940, a further three armoured divisions were formed; the 6th Armoured Division
Guards Armoured Division casualties and were struggling to find replacements. As a result, the attack was changed to one largely of armoured divisions, as lost tanks would be easier to replace. The Guards Armoured Division joined with the 7th and 11th Armoured Divisions for this attack. The aim was to strike south out of the Orne bridgehead on 18 July. The Guards Armoured Division was to advance south-east to capture Vimont and Argences. Prior to this attack the German defences were heavily bombed be the Royal Air Force. Unfortunately this was less effective than hoped against the dug-in defenders, both in the south