Trigger is a thrash metal band formed in 1987 in Los Angeles, California. They are known for their aggressive sound, fast tempos, and politically charged lyrics. The band has released six studio albums, including "Dimensions," "Slaughterhouse," and "Operation: Self Destruct." Trigger has toured extensively throughout the United States and Europe, and has shared the stage with bands such as Slayer, Megadeth, and Anthrax.