Which term describes the president as the commander of the nation's armed forces?

The term that describes the president as the commander of the nation's armed forces is "Commander in Chief." This designation emphasizes the president's role in overseeing military operations and making critical decisions regarding national defense and security. As the Commander in Chief, the president has the authority to deploy troops, direct military strategy, and ensure that the armed forces are properly equipped and prepared to respond to threats.

In contrast, other roles such as Chief Administrator center around the management of the federal government and its agencies, Chief Diplomat pertains to the president's responsibilities in foreign relations and negotiations with other countries, and Chief Legislator reflects the influence the president has on the legislative process and policymaking within Congress. Each of these roles is important in its own right but does not specifically encompass the military authority granted to the president.