On 19 December 1918 the
Commander-in-Chief, Mediterranean Fleet instructed Rear-Admiral
Michael Culme-Seymour, then commanding
British Aegean Squadron, that he was to be re-assigned to a new command appointment. On 1 January he transferred his current command to Commodore
Maurice Fitzmaurice and assumed authority for the
Black Sea,
Caspian Sea,
Sea of Azov and
Sea of Marmora. The squadron was involved in the
Allied intervention in the Russian Civil War. In October 1919 Rear-Admiral Seymour was appointed
Second-in-Command, Mediterranean Fleet, and the squadron was disbanded. The squadron's flagship was . A component of the squadron was the
British Caspian Flotilla. ==Rear-Admirals, commanding==