Tunnel rats were soldiers who performed underground search and destroy missions during the Vietnam War.
Tunnel rat or similar can mean: 1968 Tunnel Rats, a 2008 film Tunnel Rats (video game), a videogame based on the movie Tunnel Rat (G.I. Joe), a fictional character in the G.I. Joe universe Tunnel Rats (music group), an underground hip hop collective Tunnel Rats (album), the third album by Tunnel Rats