The actual right answers are
1. He was a puppet of the shogun
2. The shogunate feared European powers might eventually try to control japan.
At base, there is an ethical justification for the dropping of the bomb on Hiroshima as the United States was ready to mount a full scale invasion of Japan from China.
However, the Japanese were not given adequate time to surrender and so the dropping of the bomb on Nagasaki was inexcusable.
Answer: Through trade with other countries
