Behind Enemy Lines is an American crust punk band, based in Pittsburgh, Pennsylvania. They play in a crossover thrash style of anarchist crust punk and thrash metal. The band features vocalist Dave Trenga and drummer Matt Garabedian, both of Aus-Rotten, Mary Bielich (Penance, Mythic, Mud City Manglers, Novembers Doom, Derketa, Wormhole) and Matt Tuite (Wickerman, Penance, Blackfinger, Devil Bell Hippies, Mud City Manglers) and formerly guitarist Bill Chamberlain of The Pist and Caustic Christ.