7th Armoured Brigade (United Kingdom) in February 1940. The 7th Armoured Division had a red jerboa (a nocturnal rodent indigenous to North Africa) as its emblem and became known as 'The Desert Rats'. The 7th Armoured Brigade, meanwhile, had a green jerboa as its emblem. The 7th Brigade became known as the 'Green Rats' or the 'Jungle Rats' after it moved to Burma in 1942. The Second World War broke out in September 1939, with both Britain and France declaring war on Germany after the German Army invaded Poland. Italy launched an invasion of British-controlled Egypt shortly after entering the war on Germany's side in
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