The Embassy of the United States is a diplomatic mission representing the U.S. government in a foreign country. It serves as a hub for diplomatic relations, providing services to American citizens abroad and facilitating communication between the U.S. and the host nation. Each embassy is headed by an ambassador, who is appointed by the President of the United States. Embassies are typically located in the capital city of the host country and are designed to promote U.S. interests, including trade, security, and cultural exchange. They also assist with visa applications for foreign nationals wishing to visit the United States.