Hostility

There's more than one band named Hostility:
1)American band that destroys with their unrelenting blend of spastic hardcore and heavier-than-your-mom groove metal. The band consists of Greg Haran (vocals), Vorrises (guitar), Brandon Sigmund (bass), and Andrew Holzbaur (drums). Their style of music could best be described as taking the pure metal elements of bands like Pantera, Machine Head and Slipknot and infusing them with some of the controlled chaos of bands like Premonitions of War and Ion Dissonance. Has at least two albums, 2001's Another Statistic, and 2006's Uncompromised.
2) Polish anarcho-hardcore-punk band that used to play heavy crust. Started in early 90s as more straight forward crustcore and developed to slower, heavier and pretty depressing stuff with obvious Misery (Minneapolis) influence. Their discography consists of: unreleased demo tape, split demo with FEAR OF CONFORM and "...I Niech Jeden Strzal..." cassette album. They also recorded 4 songs for the 7" EP to be released on Scream Records (Poland) but never finished the artwork so the tracks remain unreleased.
3)Canadian grind band from Edmonton Alberta. They had Brett, Tom, Blare and some girl. Broken up now and the after-math of the band=Hatred of Humanity. Still Edmonton based, same members, minus the girl.