The 19th Hyderabad Regiment in 1939 consisted of four regular battalions; the 1st (Russell's), 2nd (Berar), 4th and The Kumaon Rifles. The Hyderabads expanded during the war adding another eight battalions to the 19th Hyderabad Regiment. Two more battalions, the 1st and 2nd Hyderabad Infantry, were raised as part of the Indian State Forces. The battalions of the 19th Hyderabad Regiment fought in the Middle East, North African Campaign, Persia, Battle of Malaya, Battle of Singapore and Burma Campaign.