Arch Enemy are a Swedish melodic death metal band, originally a supergroup, from Halmstad, Sweden, formed in 1996. Its members were in bands such as Carcass, Armageddon, Carnage, Mercyful Fate, Spiritual Beggars, and Eucharist. It was founded by Carcass guitarist Michael Amott along with Johan Liiva, who were both originally from the influential death metal band Carnage.