There are at least 2 bands named Expulsion: 1. Expulsion was a Death/Doom Metal band from Vallentuna, Sweden, formed in 1988 (containing some Treblinka and Tiamat members) well known among tape traders for their early demos. Though the band released two full-length CDs they mainly remained in the underground. Formerly known as River's Edge.
2. Expulsion from The Netherlands plays guitar-oriented thrash metal: raging, highly aggressive with their own musical approach.