After the First World War, the 92nd (Prince of Wales's Own) Punjabis were grouped with the 90th Punjabis, 91st Punjabis (Light Infantry), 93rd Burma Infantry and the two battalions of 89th Punjabis to form the 8th Punjab Regiment in 1922. The battalion was redesignated as the 4th Battalion (Prince of Wales's Own) 8th Punjab Regiment. During the Second World War, 4/8th Punjab (PWO) served in Iran and Iraq. In 1947, the 8th Punjab Regiment was allocated to Pakistan Army. In 1956, it was merged with the Baluch Regiment and 4/8th Punjab was redesignated as 4 Baluch (now 4 Baloch). During the Indo-Pakistani War of 1965, the battalion again distinguished itself on the Sialkot Front.