The Royal Regiment of Fusiliers is an infantry regiment of the British Army, part of the Queen's Division. Currently, the regiment has two battalions: the 1st Battalion, part of the Regular Army, is an armoured infantry battalion based in Tidworth, Wiltshire, and the 5th Battalion, part of the Army Reserve, recruits in the traditional fusilier recruiting areas across England. The Royal Regiment of Fusiliers was largely unaffected by the infantry reforms that were announced in December 2004, but under the Army 2020 reduction in the size of the Army, the 2nd Battalion was merged into the first in 2014.

The Queen's Division is a British Army training and administrative apparatus for infantry regiments from the East & South of England, and Gibraltar.