The Battle of Baku in June – September 1918 was a clash between the Ottoman–Azerbaijani coalition forces led by Nuri Pasha and Bolshevik–Dashnak Baku Soviet forces, later succeeded by the British–Armenian–White Russian forces led by Lionel Dunsterville. The battle was fought as a conclusive part of the Caucasus Campaign, but as a beginning of the Armenian-Azerbaijani War.