History of the Panama Canal
During World War II, the canal proved a vital part of the U.S. military strategy, allowing ships to transfer easily between the Atlantic and Pacific. Politically, the Canal remained a territory of the United States until 1977, when the Torrijos–Carter Treaties began the process of transferring territorial control of the Panama Canal Zone to Panama, a process completed on 31 December 1999.
Charlie Chan in Panama
Charlie Chan must stop a spy from destroying the Panama Canal, trapping a Navy fleet on its way to the Pacific after maneuvers in the Atlantic. As the U.S. fleet prepares to navigate the waters of the Panama Canal, Panama City becomes rife with spies.