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
2nd Armoured Division (United Kingdom) the 1st Light Armoured Brigade and the 22nd Heavy Armoured Brigade were assigned. The 2nd Support Group was formed in February, but had no troops until March. The 1st Armoured Division had priority for equipment and the 2nd Armoured Division had to take the left-overs; the 1st Armoured Brigade, with about 150 Light Tank Mk VI, was the most combat-ready part of the division for most of 1940. The 22nd Armoured Brigade had to make do with lorries and a few light tanks. As the threat of invasion receded after the Battle of Britain, the division was reorganised and reinforced