"Grand Declaration Of War" is the second album by the Norwegian black metal band Mayhem, released on June 6, 2000, under the labels Necropolis Records and Season Of Mist. This album stands as a pivotal entry in the band's discography, featuring a total of 13 tracks that explore themes of chaos, war, and existentialism, consistent with Mayhem's notorious reputation in the metal genre. The album showcases a unique blend of rock and metal sub-genres, characterized by its aggressive guitar riffs, complex rhythms, and haunting vocal delivery. "Grand Declaration Of War" is often noted for its avant-garde approach, pushing the boundaries of traditional black metal and incorporating elements of experimental music. Tracks such as "A Bloodsword and a Colder Sun" and "To Daimonion" highlight the band's innovative style while maintaining their signature intensity. The production quality marks a significant evolution from earlier works, contributing to the album's enduring impact on the metal scene. As a result, "Grand Declaration Of War" remains a critical point of reference for both fans and scholars of heavy music.