Fortress is the fourth studio album by American rock band Alter Bridge, released by Roadrunner Records on September 25, 2013.

The album was written over the three previous years while the band toured, as well as during Alter Bridge's hiatus due to singer Myles Kennedy touring with Slash, guitarist Mark Tremonti releasing his debut solo album All I Was, and drummer Scott Phillips recording with his band Projected.

[9] On September 23, the band streamed the album in its entirety for a limited time on the Metal Hammer website as a UK exclusive.

[10] During an interview with Bravewords on October 24, Myles Kennedy stated that the Best Buy B-side track, "Outright", had been incorrectly titled.

[16] Melodic said, "[Alter Bridge's] ability is undeniable at this point, and Fortress proves they are one of the best rock/metal acts of today's generation and only moving forward.

gave the album a perfect 5/5 score, saying that "on Fortress, with Myles [Kennedy] and Mark [Tremonti] both operating at the peak of their powers, there may be no limit to where Alter Bridge can go from here.

"[17] Classic Rock also praised the album, ending their review with "Myles Kennedy says he never wants to be the guy who says each record is the best thing they've ever done.

Fortress proves to be the next impressive chapter in an epic adventure that shows no sign of ending any time soon.