ARTICLE I Definitions (1) Defense Sites: Those areas, and the installations within them, which the Republic of Panama by this Agreement permits the United States Forces to use for the specific purposes of the Panama Canal Treaty, and as the two Governments may otherwise agree, a list of which is set forth in paragraph (1) of Annex A of this Agreemnt. (2) United States Forces: The land, sea and air armed services of the United States of America. (3) members of the Forces: The military personnel of the United States Forces on active duty who are in the Republic of Panama for the specific purposes of the Panama Canal Treaty, and as the two Governments may otherwise agree. This term includes those military personnel of the United States Forces on active duty and present in the Republic of Panama on temporary duty from other stations, or on board aircraft or vessels of th6 United States Forces which are in transit or visiting on official business. Solely for purposes of the privileges authorized under Articles X, XI, and XVIII of this Agreement, this tfrm also includes those military personnel of the United States Forces on active duty, assigned to other stations and present in the Republic of Panama on official leave. (4) Members of the civilian componet: (a) Nationals of the United States, to whom United States passports have been issued, who are employed by the United States Forces and assigned to the defense sites in the Republic of Panama. TIAS 10032