Tuntematon vihollinen was released in the year 2000。Tuntematon vihollinen is also called as The Art of War, Zasady walki, Arte della guerra, Arte de la guerra, Art of War, A Cilada, Art de la guerre。

Shaw is an operative for the United Nations' covert dirty-tricks squad, using espionage and quasi-ethical tactics to secure peace and cooperation. When a shipping container full of dead Vietnamese refugees turns up on the docks and China's ambassador is gunned down at a dinner celebrating a new trade agreement with China and the US, Shaw is framed for the murder and must evade the FBI and Triad gangsters to find out what is really going on.

Tuntematon vihollinen actors and actresses include Anne Archer, Cary-Hiroyuki Tagawa, Fernando Chien, Fred Bessa, James Hong, Jeniene Phillips, Marie Matiko, Maury Chaykin, Michael Biehn, Ron Yuan, Wesley Snipes。