Been there, I spent three years serving in the US Army in the late 70's. The peace memorial stands as a reminder that the desire for worldwide dominance through force cannot be tolerated. Even after the US dropped the bombs on Japan we stayed and rebuilt the country that attacked us. Japan is what it is today because of the US and our reconstruction of that country. As I said earlier the dropping of the bombs did two important things,If you think it does, then visit Hiroshima and Peace Memorial Park, and then think again.
1. It brought an immediate end to the war
2. It ultimately saved more lives
It also can be argued that it also kept things in order through the cold war as the other countries knew we had to the resolve to use our neuclear arsenal if need be.
No one likes to use these kinds of weapons. Sometimes it is necessary. Remember we did not just indiscriminately drop a bomb on an unsuspecting country.
Bro Tony