Waterway across the Isthmus of Panama. The canal connects the Atlantic Ocean and the Pacific Ocean. The United States built it from 1904 to 1914 on territory leased from Panama.
Note: Conflict between the United States and Panama has centered on control of the canal; a treaty was signed in 1977 returning control of the Canal Zone to Panama in 2000. Since that time, Panama has agreed to neutral operation of the canal.