Lincoln did not want to see slavery expand. Douglas believed in popular sovereingty, hope this helps!!!
The U.S did not join the League of Nations following WWI. Even the the President of the United States at that time, Woodrow Wilson, was enthusiastic about the organization, they didn't officially join it. The reason why they didn't join it was because of isolationists in congress, in other words, people that didn't agree with what other people are interested in. Because of the war and all of the fatal deaths of Americans, people didn't want the U.S to be affiliated with Europe in any way.
<span>This is of course somewhat of a subjective question, but in general most would agree that he did not make a wise decision, since the United States would have stayed out of the war for longer had he not bombed. </span>
This question belongs in a philosophical debate, it is one of those questions that everyone in the world has a slightly different answer to.
