Following this, the Chinju-fu (a large and critical army or naval base) was installed in Higashi-Maizuru in October 1901, due to Maizuru's position as a military choke point, of which the first director was Heihachiro TOGO.
その後1901年（明治34年）10月には、軍事的要地として東舞鶴に舞鶴鎮守府が設置され、初代長官には東郷平八郎が就任した。