The Centro-Caspian Dictatorship, also known as the Central-Caspian Dictatorship, was a short-lived anti-Soviet administration proclaimed in the city of Baku during World War I. Created from an alliance of the Socialist Revolutionary Party and Mensheviks, it replaced the Baku Commune in the bloodless July 26 Baku Coup d'état of 1918, and fell on 15 September 1918, when Ottoman-Azeri forces captured Baku. Wikipedia