In 1958 the most radical reorganisation of the British Army since 1881 took place. This included the formation of the Green Jackets Brigade, which consisted of the 1st Battalion of the Oxfordshire and Buckinghamshire Light Infantry, the 1st Battalion of The King's Royal Rifle Corps and the 1st Battalion of the Rifle Brigade (Prince Consort's Own.
The Brigade system was unpopular and relatively short lived. On 1st January 1966 the three battalions amalgamated to form a single regiment - The Royal Green Jackets.
The regimental cap badge was formed using elements from the predecessor units. At the centre of the Royal Green Jackets' cap badge is a bugle on a Maltese Cross. The cross is taken from the badges of both the King's Royal Rifle Corps and The Rifle Brigade. In the cross are various Battle Honours from the former regiments. They are so displayed because the regiment does not have colours. At the base of the badge is a Naval Crown. This was awarded to The Rifle Brigade to commemorate earlier service under Nelson at Copenhagen. The badge is framed by a wreath and surmounted by a crown.
In 2007 the Royal Green Jackets became part of The Rifles.