Fortress is the second studio album by Canadian band Protest the Hero which was released on January 29, 2008 on Vagrant Records in the US and Underground Operations in Canada.
Fortress was recorded at Silo Studios in Hamilton, Ontario during the summer of 2007. The album contains 10 tracks broken into three movements, separated by piano interludes, and is approximately 41 minutes in length. The band has stated that the sound is similar to Kezia but with a "less poppy and more technical metal" influence. Fortress does not revolve around a single concept, unlike their previous album.
Fortress was met with generally favorable reviews, receiving a comprehensive score of 86 on Metacritic. Tyler Patrick Munro of SputnikMusic states: "The album improves on everything established on Kezia (right down to the much more natural sounding piano codas), and it does so without the sometimes blatant repetition of its predecessor." He cites the track "Bone Marrow", stating: "While 'Bone Marrow' places more emphasis on the underpinning sythns of the first two tracks, its heavy orchestration still takes a backseat to its varying structure, which fluidly transits from hyper-melodic up-tempo to ball-crushing gutturals and chugged syncopation, all of which are made twice as effective by the interwoven bass slapping", and compares the style of the opener "Bloodmeat" to the dissonance of The Dillinger Escape Plan and Converge.