"War" is not a Japanese word.
In Japanese, "war" is 戦争 (sensou).
they were mean
In Article 9 of the Japanese constitution, it claims that the Japanese have renounced war. This constitution was written after World War II, and so although they have participated in wars in the past, such as the Russo-Japanese War or Sino-Japanese War, it does not mean that they are in war currently, or will be in a war in the future. If you are asking why Japan engages in war, the answer is the same as why any country would engage in war -- territorial expansion, imperialism, colonization, racism, etc.
Do you mean, their version of the "Rebel Yell"? If so, it was "Banzai."
The Japanese beated The Russo(The Japanese won the war)
No, Unless by 'vietnam war' you mean the Japanese conquest of French Indochina during WWII .
Russo-Japanese War 1904-1905.
Russo-Japanese War happened in 1905.
the russo-japanese war
the japanese were put into war camps because...
Japanese War Bride was created in 1952-01.
The duration of Japanese War Bride is 1.52 hours.
Hooray, war with Germany finally! Or did you mean the official one?