I believe the answer would be Barrage
He served under William McKinley, Grover Cleaveland and Benjamin Harrison.
Make Japan surrender unconditionally.
Also that it would cost less American lives.
Those who supported the use of the atomic bomb believed that Japan would surrender after a large scale attack. They also believed that it would be better than an American invasion as it would result in less American casualties.
Hope this helps!
which template u havent attached any templates if u do then i can help!!