It was usually performed by certain high ranking Japanese Officials and when they suffered a Major blunder in the war, or something that was considered MAJORLY unhonorable, and that's the key here, honor. Honor was HUGE in Japan, your family would consider you worthless if you didn't have honor, so doing something like losing a battle and surrendering were considered cowardly, so to maintain their honor and avoid capture they would commit Seppuku
Some of the effects include different culture being introduced to the nation
Also it may teach some people to either be racist / prejudice or kind and accepting
The growing diversity can bring division and could also bring union depending on how current citizens act towards them
Not only were soldiers affected by the tragedies of the war, but civilians were affected also. It is estimated that approximately 5 million civilians died due to war-induced causes. The birth rate sharply declined during the war period as well.
Answer:
Preventing the creation of a national bank
