James Madison promised the Bill of Rights to the people even before the constitution was ratified. The Bill of Rights protects the basics freedoms of the people like freedom to practice any religion, the right to protest, the right to privacy. If you want a list of the first 10 amendments of the constitution I suggest you look them up.
The United States was the last to join the Allied Powers because they did not want to be apart of the war. They joined the Allied Powers after Japan bombed Pearl Harbor.
