The 1977 Panama Canal Treaties: Ending U.S. Control, Ensuring Neutrality

The Panama Canal Treaty of 1977 (actually two treaties) was a landmark agreement between the United States and Panama. It terminated the 1903 treaty that had granted the U.S. perpetual control of the Canal Zone and set a timetable for full Panamanian sovereignty by December 31, 1999.

Key Provisions

• Transfer of Control: Panama assumed full operation, maintenance, and defense of the canal on the target date.
• Permanent Neutrality: The canal remains open to vessels of all nations on equal terms, in peace and war.
• U.S. Defense Rights: The U.S. retained the right to defend the canal’s neutrality.

Negotiated over more than a decade, the treaties were hailed as a diplomatic victory for Panama and a step toward improved U.S.–Latin American relations.