A tripwire is a mechanical assembly designed to detect an anticipated type of target, and to trigger an apparatus that acts upon or records information about, that target. "Tripwire" also may refer to one of the following: Technology Open Source Tripwire, open source intrusion detection software Tripwire (company), a software company that builds and sells commercial versions of Tripwire-based software Military doctrine Tripwire force, a small but credible military force acting as a strategic deterrent, with the understanding that any hostility directed against said force or area would ignite an armed conflict between two powers; for example, the NATO and U.S. forces deployed in the Baltic states as part of Operation Atlantic Resolve. Books Tripwire (novel), by Lee Child Tripwire (2010), by Steve Cole (writer) Film and television Tripwire (film) 1990 American film directed by James Lemmo Tripwire, documentary on Aboriginal soldiers in Australia narrated by musician Archie Roach 1995 Games and comics Tripwire Interactive, a video game developer Tripwire (G.I. Joe), a character from the G.I. Joe universe