 In 1924, Ugaki graduated from the 22nd class of the Naval Staff College, and was promoted to lieutenant commander.After a brief posting aboard the cruiser , he served three years as a staff member of the Naval Gunnery School, and was then appointed as a resident officer in Germany from 1928–1930, with the rank of commander.After his promotion to captain on 1 December 1932, Ugaki served as an instructor at the Naval Staff College.