The Sigur Valens (シグル＝バレンス Shiguru Barensu) is a Protoculture battlefortress seen in Macross Δ, its theatrical adaptation, Macross Δ Movie: Passionate Walküre, and its movie Macross Δ Movie: Absolute Live!!!!!!. A relic from the Protoculture civilization, it is a massive spaceship that the Windermerians managed to salvage and restore, adding it to their war effort. In final movie, it was destroyed by 2-3 QFV Reaction Bullet fired by Sv-303 Vivasvat.