Who has the ultimate authority to authorize the use of nuclear weapons?

The President of the United States has the ultimate authority to authorize the use of nuclear weapons. This authority is rooted in the President's role as Commander-in-Chief of the Armed Forces, as established by the U.S. Constitution. The decision to use nuclear weapons is a significant and potentially catastrophic one, therefore it is reserved for the highest level of government to ensure that it is made with the utmost gravity and consideration for the consequences.

The President has the ability to make rapid decisions based on military assessments, intelligence reports, and national security considerations. While other entities, such as the Secretary of Defense or the National Security Council, may provide advice and information, the final decision rests solely with the President. This centralized authority is intended to prevent dilatory decision-making in the face of urgent threats and emphasizes accountability at the highest level of government.