During the military parade at sea, Noda read out whether he was sincere or not. Such as the motto of the former Japanese naval military academy. The slogan used to end is "gentlemen have worked hard". This is a slogan often used by the old Japanese navy to boost morale before and after World War II. The original sentence was to the effect that "the empire was abolished, and at this point, the kings worked hard."

This slogan was originally used by the Japanese navy in the Russo-Japanese War of 1905. At that time, the Japanese United team believed that Tougou Heihachirou had issued this operational order to the all-vision team before the war, and raised the Z-flag indicating "attack". The Japanese army won a great victory in this war, and the Russian fleet was almost wiped out. This is the first time that Japan has defeated the European Army since its establishment, and it is extremely proud of the Japanese navy.

Before 194 1 attacked Pearl Harbor in the United States, the Z-flag was raised again on the mast of the flagship of the Japanese joint team. At that time, Isoroku Yamamoto, the commander-in-chief of the Japanese joint team and the planner of this incident, also issued the battle slogan of "Abolish the empire, and make every effort". 1942, the naval battle of Santa Cruz between Japan and the United States started, and the Japanese mobile unit Si Ling Nan Yunzhong also used this instruction to boost morale.