sentences:  Promoted captain on 31 December 1917, he served in the Admiralty as Assistant Director of Plans and was appointed a Commander of the Order of the British Empire.After the war Colvin commanded the cruiser in the Black Sea and the Mediterranean and in 1922 to 1924 he was Naval Attaché in Tokyo.He re-joined as Flag Captain to the Commander-in-Chief, Atlantic Fleet, and in 1927 became Director of the Naval Tactical School, Portsmouth.