People in the old Higashi-Maizuru City (Higashi Maizuru) where Maizuru Chinju-fu was founded and developed as a military city, were quite different, which brought a movement to life to separate the two cities.
舞鶴鎮守府が設置され、軍需都市として発展した旧東舞鶴市（東舞鶴）では、住民気質が全く異なり、舞鶴市東西分離運動が活発化した。