The 6th Battalion, Royal Warwickshire Regiment was a unit of Britain's Territorial Army (TA) from 1908 until 1961. Recruited from Birmingham, it served as infantry in some of the bloodiest fighting on the Western Front and in Italy during World War I. Converted to an Anti-Aircraft (AA) role, it defended the West Midlands during The Blitz in the early part of World War II, and then joined Eighth Army in North Africa, including service in the famous Siege of Tobruk and in the Italian Campaign. It served on in the air defence role in the postwar TA until 1961.

The Royal Warwickshire Regiment, previously titled the 6th Regiment of Foot, was a line infantry regiment of the British Army in continuous existence for 283 years. The regiment saw service in many conflicts and wars, including the Second Boer War and both the First and Second World Wars. On 1 May 1963, the regiment was re-titled, for the final time, as the Royal Warwickshire Fusiliers and became part of the Fusilier Brigade.