In the United States, the three main factors that make up the system of checks and balances would be the Executive Branch, the Legislative Branch, and the Judicial Branch, since the goal is to separate these powers so that no single power becomes too powerful.
Isolationism was the policy that kept them from joining the League of Nations. Isolationism is when a group stays away from or ignores all people in that group. Mainly political matters of other countries.
The cabinet people are the President’s closest advisors.
They were well equiped yet poorly trained