On December 20, 1989, United States troops invaded Panama to oust Manuel Noriega. From the article:
"How Panama actually started its war with the United States - We Are The Mighty
On Dec. 20, 1989, President George H. W. Bush launched Operation Just Cause, the U.S. invasion of Panama. The goal was to oust Panamanian dictator Manuel Noriega and maintain the neutrality of the Panama Canal while protecting American citizens there. Some 27,000 U.S. troops toppled Noriega’s regime in just over a month and they started it – just like the U.S. planned.
Some people would swear that a small Central American dictatorship with a patronage-based military starting a war with a world superpower is a terrible idea. Those people would be correct, especially considering the superpower already controlled a huge chunk of the country, and staged military units from inside that zone of control.
Until 1979, it was known as the Panama Canal Zone. By 1989, that area was full of U.S. military personnel.
Just a sliver. No big deal.
At the time, the United States still controlled the canal. The terms of the Carter-Torrijos Treaty stated that Panama would gain full control of the canal on Dec. 31, 1999. But even after the canal was given to Panama, the U.S. retained the right to defend the canal to keep it a neutral lane for all ships of all countries. So, the United States already had 12,000 combat-ready forces in the country before the invasion even began.
Still, the United States worked to provoke the Panamanians into committing overtly hostile acts toward U.S. troops. The Americans gave money to the campaign of Guillermo Endara, a politician in direct opposition to Noriega’s regime. When Endara won the national election over Noriega’s chosen candidate, the dictator ruled the vote invalid and then declared himself the sole ruler of Panama.
Drug and human trafficker-in-chief, Manuel Noriega.
Alarmed at Noriega’s shocking display of power, the U.S. military began stepping up its provocation efforts, staging military exercises in former Canal Zone areas, driving through Panamanian territory, and challenging the Panamanian Defense Forces to stop them from moving as they pleased. The Bush Administration also expanded sanctions on Panama and even funded a coup attempt against Noriega.
On Dec. 15, 1989, Noriega even declared war on the United States — but even that didn’t precipitate the invasion. The next day, four military officers were stopped by the Panamanian military on their way to dinner at the Marriott in downtown Panama City. The four officers were driving in a private vehicle when they hit a roadblock and were suddenly surrounded by PDF troops. The Panamanians fired at the vehicle, hitting Marine Capt. Richard E. Hadded in the foot and wounding Marine 1st Lt. Robert Paz, who was rushed to the hospital, where he died of his wounds.
Two Americans, a Naval officer and his wife, witnessed the event. They were detained and beaten by the PDF. That’s when President Bush called down the thunder.
Cue the Van Halen song.
The Panamanian Defense Forces got hit hard. In the middle of the night, tens of thousands of American troops using mechanized infantry, Special Forces, and even airborne assaults, made a move to cripple the Panamanians and capture Noriega. It was the largest combat operation since the Vietnam War, an invasion of an area the size of South Carolina.
By one in the morning on Dec. 20, 1989, U.S. troops installed Endara as Panama’s new President. Meanwhile, Army helicopter gunships and USAF F-117 Nighthawks were hitting targets around the country and the U.S. Army Special Forces, Navy SEALs, and U.S. Marines hit the ground in full force. They first captured special military targets, like the PDF’s La Comandancia and the Bridge of the Americas over the canal itself. SEALs destroyed Noriega’s personal boat and jet as the dictator took refuge inside Vatican City’s diplomatic mission in the capital.
He would not be there long.
Noriega hid under the protection of the Holy See as the United State military cleaned up the remnants of the Panamanian Defense Forces. Meanwhile, the Americans blasted rock and heavy metal music at the mission in an attempt to force Noriega to leave the building and face justice.
He finally did on Jan. 3, 1990. Noriega was flown back to the U.S., where he faced indictments for drug trafficking in Miami. The onetime dictator would spend the rest of his life in prison."