History of North America

Who is the most important representative of US in relations with other nations?

The President of the United States is the most important representative of the United States in relations with other nations. The president is the head of state and government of the United States, and is responsible for conducting foreign policy. The president is also the commander-in-chief of the United States military, and has the authority to use military force to defend the United States or its interests. The president also has the power to negotiate treaties with other nations, which must be approved by the Senate. The president also appoints ambassadors and other diplomatic representatives to other nations, and receives ambassadors and other diplomatic representatives from other nations.