The death of George H.W. Bush has dominated the U.S. news for days, but little attention has been paid to the defining event of Bush’s first year in office: the invasion of Panama. On December 19, 1989, Bush Sr. sent tens of thousands of troops into Panama, ostensibly to execute an arrest warrant against its leader, Manuel Noriega, on charges of drug trafficking. General Noriega was once a close ally to Washington and on the CIA payroll.