In 1972, it was re-designated as 5th Battalion, The Light Infantry, serving as such until amalgamation in 1999.

Upon the creation of the TAVR, and the reduction of territorial units, the regiment was formed through the amalgamation of the Light Infantry Brigade Territorial battalions, namely: 4th Battalion, King's Shropshire Light Infantry; Duke of Cornwall's Light Infantry (TA); 4th Battalion, King's Own Yorkshire Light Infantry; 1st Battalion, Herefordshire Light Infantry; and 6th/8th Battalion, Durham Light Infantry.

[1][2] Upon formation, the regiment's structure was as follows:[1][3] In 1969, a fifth rifle company (E Company (Durham)) was raised at Spennymoor and Bishop Auckland, from a cadre of 6th/8th Battalion, Durham Light Infantry.

[5] 1972, saw the regiment cease to exist, and be re-designated as the 5th Battalion, The Light Infantry with the same structure it held previously.

After all these changed, and a title change to 5th (Shropshire and Herefordshire) Battalion, The Light Infantry, in 1988, the battalion now possessed the following structure:[3][6] In line with the reduction of the armed forces after the end of the Cold War, the battalion was reduced to a three rifle company establishment, with A and D Companies being disbanded, with A Company being replaced by B Company, 4th (V) Battalion, Worcestershire and Sherwood Foresters Regiment, retaining its regimental identity.