What did president Roosevelt believe about the powers of the president

Explain the importance of president harry truman's order to integrate the u.s. military and the federal government.

President of the united states has scheduled a cabinet meeting today to discuss energy policy with specific focus on pollution and global warming. given what you know of the executive branch, which group of attendees would the president most likely expect to provide up-to-date information and expert insight during this meeting?

General who became emperor of france