The officer selected to train and command the new unit was Lt Col Muhammad Afzal Khan (Probyn's Horse).
On April 17, it received an order to deploy at Chhor (which was 800 miles towards Pakistan's southern border) and to conduct the Army's first ever tactical maneuver; a tank assault.
After a ceasefire brokered by the United Kingdom, Biar Bet was returned as part of an agreement between Pakistan and India.
In this operation by significant personal gallantry, Major Khadim Hussain destroyed three enemy tanks with an abandoned recoilless rifle and was awarded with Sitara-i-Jurat.
Iranian Army Officers visited the regiment in training area on 7 Nov 1966 and were visibly impressed by the high standard of operational readiness displayed by all ranks.
The RHQ and A Squadron participated in the Joint Services Pakistan Day Parade as a mechanized column from Armoured Corps.