Why did general dwight eisenhower oppose using nuclear weapons in japan?

He believed that Japan was already defeated and would not pose a problem and that they were just prolonging to war to avoid looking like a humiliated army. He believed also that this would show the US in a new light as a country that dropped nukes on a defeated country and even more so because of civilian targets. He supported usage of nukes on military targets but did not want them to be used on civilian targets.

Where are the following questions