Soon after military facilities were established in both Maizuru Cities, it became necessary to control Maizuru as a single military city, as it was the only one on the Japan Sea coast.
舞鶴は日本海側唯一の軍事都市として、軍事施設が両舞鶴市に跨がるように設置されるなり、軍都一括管理の重要性が増した。