In the Tohoku War, many domains of the Ou alliance lagged behind in armaments due to financial difficulties and delay in political reform, and differed greatly in military strength compared with the new government's forces.
東北戦争では奥羽同盟に参加した藩の多くが、改革の遅れや財政難から軍備が立ち後れており、新政府軍とは兵力での開きが大きかった。