In 1958, the regiment joined the Oxfordshire and Buckinghamshire Light Infantry and the Rifle Brigade in the Green Jackets Brigade and in 1966 the three regiments were formally amalgamated to become the Royal Green Jackets.
Pada 1958, resimen tersebut bergabung dengan Oxfordshire and Buckinghamshire Light Infantry dan Rifle Brigade dalam Green Jackets Brigade dan pada 1966, tiga resimen tersebut resmi diamalgamasikan menjadi Royal Green Jackets.