During the 1980s, "Conyngham" continued to support United States foreign policy when she served off the coast of Libya (1982); was awarded the Navy Expeditionary Medal for providing naval gunfire support of Marines stationed in, and off the coast of, Beirut, Lebanon (1983) and monitored maritime traffic off the coast of Nicaragua (1983). She sailed with the Battle Group in support of U. S. intervention forces in Grenada (1983). While deployed to the Caribbean in 1986, "Conyngham" was credited with four drug interdictions and was awarded the Coast Guard Meritorious Unit Commendation Medal.