context: US Invasion of Panama (code name: Operation Just Cause, English: Operation Just Cause) - US invasion of Panama, which began on December 20, 1989. The fighting was completed on the morning of December 25th. The United States officially motivated the invasion by protecting the lives of 35,000 American citizens and the “restoration of democracy" in Panama.
question: What was the official reason for the US invasion of Panama?
answers.text: by protecting the lives of 35,000 American citizens and the “restoration of democracy" in Panama