 Complete the following phrase:  Relations between Libya and the United States under President Reagan were continually contentious, beginning with the Gulf of Sidra incident in 1981; by 1982, Libyan leader Muammar Gaddafi was considered by the CIA to be, along with USSR leader Leonid Brezhnev and Cuban leader Fidel Castro, part of a group known as the unholy trinity and was also labeled as our international public enemy number one by a CIA official. These tensions were later revived in early April 1986, when 