on 2 june 1913, he was promoted to captain, and to rear admiral on 15 april 1914. after briefly assuming command of the battleship squadron, he was appointed chief of the navy general staff in june 1914, serving until the resignation of king constantine i and the assumption of government by eleftherios venizelos in june 1917. the new government placed him on suspended service and retired him on 20 october 1917, followed by internal exile in 1918–20. after the venizelist electoral defeat in november 1920 and the return of king constantine, he was recalled to active service (6 november 1920) and served as chief of the aegean fleet (january–april 1921), which he led in the attempts to stop the seaborne resupply of mustafa kemal's turkish national movement, and again chief of the navy general staff (december 1921-october 1922). after the greek defeat in the asia minor campaign and the 11 september 1922 revolution, he was again placed into suspended service and retired on 19 january 1923 as vice admiral.