The 6th Guards Tank Brigade was an armoured brigade of the British Army formed from the Foot Guards in 1941 as the 6th Guards Armoured Brigade when the United Kingdom was under the threat of invasion in Operation Sea Lion and more armoured formations were required.

[3] The brigade, now equipped with the Churchill tank, served in the North West Europe campaign landing in Normandy on 20 July 1944.

[4][5] Correspondence in Winston Churchill's The Second World War (Volume V: Closing the Ring, Annex C) in April 1944 appears to indicate that breaking the brigade up and making its personnel available as replacements for other army formations was considered.

[6] The brigade went on to take part in the Battle of Normandy in Operation Bluecoat,[7] Operation Veritable finally ending the war at Lübeck on the Baltic Sea where they captured a U-boat.

[8] The 6th Guards Tank Brigade was constituted as follows during the war:[9] Prior to Operation Plunder and after Operations Veritable and Blackcock, the 6th Guards had units of artillery, engineer and other units added to their formation.