President Truman’s chief priority in using the atomic bomb against Japan was to _____. A. save American lives B. prepare for a U.S. invasion of Japan C. protect the lives of Japanese civilians D. become a superpower
President Truman's chief priority in using the atomic bomb against Japan was to A) save American lives.
The answer to the question above is letter "A. save American lives". Truman became the president succeeding President Franklin Roosevelt in April 12, 1945. Aside from what has been said, it was also his aim to shorten war for peace.