UMUR "Surrender or Die" is the third demo recording (if you discount the "Live Karnage" demo tape) by Canadian thrash metal act Slaughter. The demo was released through Diabolic Force in April 1985. It´s the first demo from Slaughter which was recorded at a professional recording studio (Recorded at Accusonic Studio, Toronto, Ontario, Canada - April 1985).

Featuring thirteen tracks and a total playing time of 30 minutes this could just as well have been released as the band´s debut album, but instead it was marketing as a demo release, although it was released through a label. Some of the tracks from this demo were re-recorded during the February 1986 sessions which became Slaughter´s 1987 debut full-length studio album "Strappado".

Stylistically this is hardcore oriented heavy/speed/thrash metal. All the most primitive, raw, and savage elements from those genres are combined here by Slaughter and "Surrender or Die" is a pretty extreme and aggressive release considering the time of release. They´ve upped their game and have honed their skills since the early demos too, making "Surrender or Die" an actual listenable release. The sound production is raw, powerful, and perfectly suits the material, so upon conclusion Slaughter stepped up here and a 3 star (60%) rating is warranted.