Civil Service Practice Exam 2026 - Free Practice Questions and Study Guide

The President of the United States serves as the Commander in Chief of the military, a role established by the Constitution. This position grants the President the ultimate authority over military operations and decisions related to national defense. The Commander in Chief has the power to direct military forces, make strategic military decisions, and ensure that the armed forces are prepared for any potential threats.

In this context, the President works in consultation with military leaders and advisors, but the final command and responsibility lie with the President. This authority is critical in maintaining the balance between civil and military powers in a democratic society, ensuring that military force is employed only according to the directions of an elected official accountable to the public.

Other roles, like the Vice President, the Secretary of Defense, and the National Security Advisor, support the President in matters of national security and defense but do not hold the title of Commander in Chief. The Vice President may be involved in discussions or decisions regarding military issues but does not have direct command authority over the military. The Secretary of Defense plays a key role in executing military operations and advising the President but is ultimately subordinate to the Commander in Chief. The National Security Advisor provides guidance and counsel but does not assume command over military forces.