The ambassador of the United States to Finland is the highest-ranking diplomatic position of the United States in Finland. The U.S. ambassadors are nominated by the president to serve as the country's diplomatic representatives to Ukraine. Under Article II, Section 2 of the U.S. Constitution, their appointment must be confirmed by the United States Senate; while an ambassador may be appointed during a recess, they can serve only until the end of the next session of Congress, unless subsequently confirmed. Ambassadors are under the jurisdiction of the Department of State and answer directly to the secretary of state; however, ambassadors serve "at the pleasure of the President", meaning they can be dismissed at any time. Appointments change regularly for various reasons, such as reassignment or retirement. An ambassador may be a career Foreign Service Officer or a political appointee (PA). In most cases, career foreign service officers serve a tour of approximately three years per ambassadorship, whereas political appointees customarily tender their resignations upon the inauguration of a new American president. The U.S. ambassador to Finland resides in Helsinki, the country's capital and location of the U.S. Embassy.