He also played a key role in the Fourth Mysore War and at its successful conclusion; the Siege of Seringapatam (1799). This success established Britain's position in southern India. He regulated and arranged the supplies for the army, and with a fellow officer identified a secure southern route for one of the forces (led by General George Harris) in their final approach. For this service he was subsequently recognized in a special General Orders issued by the Governor-General, and awarded the Seringapatam Gold Medal.