| Unit Name: | Black Sea and Caspian Squadron |
| Dates: | 1918-1919 |
| Country: | United Kingdom |
| Allegiance: | British Empire |
| Branch: | Royal Navy |
| Command Structure: | |
| Garrison: | HMS Emperor of India |
| Battles: | Allied intervention in the Russian Civil War |
The Black Sea and Caspian Squadron,[1] also known as the Black Sea and Marmora Force and the Black Sea and Marmora Division,[2] was a naval formation of the British Mediterranean Fleet from 1918 to 1919.
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.[1] 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.
Post holders included:
| Rank | Flag | Name | Term | |
|---|---|---|---|---|
| Rear-Admiral Commanding, Black Sea, Caspian Sea and Sea of Marmora | ||||
| Rear-Admiral | Michael Culme-Seymour | 1 January – October 1919[3] | ||
As of December 1918 included:[4]
| units | notes | |
|---|---|---|
| 3 | Battleships | |
| 7 | Cruisers | |
| 3 | Sea Plane Carriers | |
| 7 | Monitors | |
| 8 | Destroyers | from 5th Destroyer Flotilla |
| 6 | Sloops | |
| 1 | ||