"The Armed Man: A Mass for Peace" is a choral work composed by Karl Jenkins in 1999. It combines elements of a traditional Mass with various musical styles, including Gregorian chant, African drumming, and hymns, to convey a message of peace in the face of conflict. The piece was commissioned for the Royal Armouries in the United Kingdom and has since gained international acclaim. It features a range of vocal and instrumental forces, including a full choir, soloists, and an orchestra, making it a powerful and moving experience that reflects on the impact of war and the hope for peace.