Possible Clues:

• Japanese battle cry
• Japanese battle cry in WWII
• War cry
• Cry in Tokyo at bar with last letter that's first class
• Japanese battle cry (or greeting to the emperor)
• Buckaroo ___ (movie character)
• Japanese battle cry or cheer
• Traditional Japanese battle cry
• Proscribe Congo, not about to give battle cry
• Censors feature for radio, bringing outcry in Japan