Panama Canal Zone in the context of "Margarita, Panama"

Panama, officially the Republic of Panama, is a country located at the southern end of Central America, bordering South America. It is bordered by Costa Rica to the west, Colombia to the southeast, the Caribbean Sea to the north, and the Pacific Ocean to the south. Its capital and largest city is Panama City, whose metropolitan area is home to nearly half of the country's over 4 million inhabitants.

Before the arrival of Spanish colonists in the 16th century, Panama was inhabited by a number of different indigenous tribes. It broke away from Spain in 1821 and joined the Republic of Gran Colombia, a union of Nueva Granada, Ecuador, and Venezuela. After Gran Colombia dissolved in 1831, Panama and Nueva Granada eventually became the Republic of Colombia. With the backing of the United States, Panama seceded from Colombia in 1903, allowing the construction of the Panama Canal to be completed by the United States Army Corps of Engineers between 1904 and 1914. The 1977 Torrijos–Carter Treaties agreed to transfer the canal from the United States to Panama on December 31, 1999. The surrounding territory was returned first, in 1979.

The United States invaded Panama in mid-December 1989 during the presidency of George H. W. Bush. The purpose of the invasion was to depose the de facto ruler of Panama, General Manuel Noriega, who was wanted by U.S. authorities for racketeering and drug trafficking. The operation, codenamed Operation Just Cause, concluded in late January 1990 with the surrender of Noriega. The Panama Defense Forces (PDF) were dissolved, and President-elect Guillermo Endara was sworn into office.

Noriega, who had longstanding ties to United States intelligence agencies, consolidated power to become Panama's de facto dictator in the early 1980s. In the mid-1980s, relations between Noriega and the U.S. began to deteriorate due to fallout of the murder of Hugo Spadafora and the removal from office of President Nicolas Ardito Barletta. His criminal activities and association with other spy agencies came to light, and in 1988 he was indicted by federal grand juries on several drug-related charges. Negotiations seeking his resignation, which began under the presidency of Ronald Reagan, were ultimately unsuccessful. In 1989, Noriega annulled the results of the Panamanian general elections, which appeared to have been won by opposition candidate Guillermo Endara; President Bush responded by reinforcing the U.S. garrison in the Canal Zone. Following the declaration of a state of war between Panama and the United States passed by the Panamanian general assembly, as well as the lethal shooting of a U.S. Marine officer at a PDF roadblock, Bush authorized the execution of the Panama invasion plan.

Colón (Spanish pronunciation: [koˈlon]) is a city and seaport in Panama, beside the Caribbean Sea, lying near the Atlantic entrance to the Panama Canal. It is the capital of Panama's Colón Province and has traditionally been known as Panama's second city. City proper located entirely on Manzanillo Peninsula (former island), surrounded by Limon Bay, Manzanillo Bay, and the Folks River. Since the disestablishment of the Panama Canal Zone, suburban corregimiento of Cristobal to include Fort Gulick, a former U.S. Army base, as well as the towns of Cristobal and Margarita; and recent corregimiento of Cristóbal Este [es] now include the town of Coco Solo.

The Hay–Bunau-Varilla Treaty (Spanish: Tratado Hay-Bunau Varilla) was a treaty signed on November 18, 1903, by the United States and Panama, which established the Panama Canal Zone and the subsequent construction of the Panama Canal. It was named after its two primary negotiators, Philippe-Jean Bunau-Varilla, the French diplomatic representative of Panama, and United States secretary of state John Hay.

Lake Alajuela (Spanish: Lago Alajuela) is an artificial lake in the Chagres River basin. The lake is bounded by the Madden Dam and linked to the Panama Canal. Lake Alajuela serves as a reservoir for the canal, which lies to the lake's southwest. It was created in 1935 by damming up the Madden River. The Chagres, Pequení, Boquerón, Salamanca, La Puente, Indio, Piedras, San Cristóbal and Escandaloso rivers flow into the lake. The rivers of Lake Alajuela contribute 45 percent of the total water for the canal.As of 1987, it provided all of the drinking water for Panama City.

The reservoir was formerly known as Madden Lake when the Canal Zone was under U.S. administration and was renamed after control of the canal was handed over to Panama.

John Sidney McCain III (August 29, 1936 – August 25, 2018) was an American politician and naval officer who represented Arizona in the United States Congress for over 35 years, first as a U.S. representative from 1983 to 1987, then as a U.S. senator from 1987 until his death in 2018. A member of the Republican Party, he was the party's nominee in the 2008 presidential election.

Born into the prominent McCain family in the Panama Canal Zone, McCain graduated from the U.S. Naval Academy in 1958 and received a commission in the U.S. Navy. He became a naval aviator and flew ground-attack aircraft from aircraft carriers. During the Vietnam War, he almost died in the 1967 USS Forrestal fire. While on a bombing mission during Operation Rolling Thunder over Hanoi in October 1967, McCain was shot down, seriously injured, and captured by the North Vietnamese. He was a prisoner of war until 1973. McCain experienced episodes of torture and refused an out-of-sequence early release. He sustained wounds that left him with lifelong physical disabilities. McCain retired from the Navy as a captain in 1981 and moved to Arizona.

The United States invaded Panama in mid-December 1989 during the presidency of George H. W. Bush. The purpose of the invasion was to depose the de facto ruler of Panama, General Manuel Noriega, who was wanted by U.S. authorities for racketeering and drug trafficking. The operation, codenamed Operation Just Cause, concluded in late January 1990 with the surrender of Noriega. The Panama Defense Forces (PDF) were dissolved, and President-elect Guillermo Endara was sworn into office.

Noriega, who had longstanding ties to United States intelligence agencies, consolidated power to become Panama's de facto dictator in the early 1980s. In the mid-1980s, relations between Noriega and the U.S. began to deteriorate due to fallout of the murder of Hugo Spadafora and the removal from office of President Nicolas Ardito Barletta. His criminal activities and association with other spy agencies came to light, and in 1988 he was indicted by federal grand juries on several drug-related charges. Negotiations seeking his resignation, which began under the presidency of Ronald Reagan, were ultimately unsuccessful. In 1989, Noriega annulled the results of the Panamanian general elections, which appeared to have been won by opposition candidate Guillermo Endara; President Bush responded by reinforcing the U.S. garrison in the Canal Zone. Following the declaration of a state of war between Panama and the United States passed by the Panamanian general assembly, as well as the lethal shooting of a Colombia-born U.S. Marine officer Lt. Robert Paz at a PDF roadblock, Bush authorized the execution of the Panama invasion plan.

Fort Gulick was a United States Army base in the former Panama Canal Zone located on the Atlantic side of the Panama Canal near Fort Davis, on Gatun Lake.