counterterrorist

1. not comparableIntended to combat terrorism

   Henry Kissinger was there; so was Robert Komer, the CIA officer who ran the counterterrorist "pacification" program in 1967 and '68[…].

   1988 January 29, Michael Miner, “Art of Our Arrogance/Rethinking Vietnam”, in Chicago Reader

plural counterterrorists

1. A person involved in counter-terrorism, who works against terrorists.

   1 more example

   Every new season of this Fox thriller is another twist of a kaleidoscope: the same pieces — terrorists; counterterrorists (and, almost inevitably, a mole); an innocent suburban family; and the president, his aides and his family — are tumbled together to form new patterns around the central figure of the special agent Jack Bauer.

   2007 January 12, Alessandra Stanley, “Bombers Strike, and America Is in Turmoil. It’s Just Another Day for Jack Bauer.”, in New York Times