Dunsterville and the rest of the force, with reinforcements from the 39th Infantry Brigade, drove in and armoured cars about from Hamadan across Qajar Iran to Baku. Dunsterforce fought in the Battle of Baku from 26 August to 14 September 1918 and retreated from the city on the night of to be disbanded two days later. North Persia Force (Norper Force, Major-General William Thomson) took over command of the troops in northern Iran. Troops diverted from Dunsterforce in Sweet's Column opposed an Ottoman diversion from Tabriz, on the Persian road, during September; the situation was transformed by news of the great British victory in the Battle of Megiddo in Palestine The army in Caucasus was the only source of Ottoman reinforcements and had to give up divisions, ending offensive operations in the theatre.