United States territorial acquisitions
The Panama Canal Zone was an unorganized US territory located within the Republic of Panama. It was established under the Hay–Bunau-Varilla Treaty in 1903 and disestablished in 1979 under the Torrijos–Carter Treaties. Panama gained full control over the Panama Canal in 1999.
List of former United States military installations in Panama
In 1903, the Hay–Bunau-Varilla Treaty was signed between Panama and the United States. It created the Panama Canal Zone as a U.S. governed region, and allowed the U.S. to build the Panama Canal. In 1977, the "Panama Canal Treaty" (also called "Torrijos–Carter Treaties") was signed by Commander of Panama's National Guard, General Omar Torrijos and U.S. President Jimmy Carter. Over time, it would replace and absolve the 1903 treaty.