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
4th Armored Division (France, 1940) 4th Armored Division (France, 1940) The 4th Armored Division () was a short-lived armoured unit of the French Army. Formed on 10 May 1940 on the battlefield, it comprised mainly tank battalions. It fought without interruption for forty days and was initially commanded by Charles de Gaulle. The division was formed under Colonel De Gaulle on 15 May 1940. The 4DCr launched an attack on 17 May at the Battle of Montcornet, where it successfully threw back the German defenses but had to retreat on its starting positions for lack of support and air cover. It then moved south of