non-state actor
n.— «Referring repeatedly to “non-state actors”—parlance for terrorists—the doctrine is designed to arm the White House and US forces with a new range of threats and sanctions to counter the situation of threatened nuclear attack by al-Qaeda or one of its affiliates.» —“WMD threat could spark American nuclear strike” by Giles Whittell in Washington, D.C. Times (London, England) Sept. 12, 2005. (source: Double-Tongued Dictionary)