Decade of Aggression is a double live album by Slayer, released in 1991 through Def American Records (later renamed to American Recordings). The album reached #55 in the Billboard Top 200. A numbered limited edition (of 10,000 copies) was also released with the CDs contained in a metal case, a booklet with exclusive photographs, and two additional live songs, "Skeletons of Society" and "At Dawn They Sleep".