The United States Coast Guard is a branch of the United States Armed Forces and one of seven uniformed services. In addition to being a military branch at all times, it is unique among the armed forces in that it is also a maritime law enforcement agency (with jurisdiction both domestically and in international waters) and a federal regulatory agency. It is an agency of the United States Department of Homeland Security during peacetime, and can be transferred to the Department of the Navy by the President during a time of war.