There's more than one band with this name:

1st: Kombat was an metallic straight edge hardcore band from Belgium in the early 00's. They Put out some 7''es and an EP called "When Silence makes You Deaf" on Last Effort Records.

2nd: Kombat is an unsigned band from Riverside, California.
The current line-up is:
David Gallegos - bass/lead vocals
Stephen Ramirez - drums
Erik Sneve - guitars/vocals
Matt Thaxton - guitars

3rd: Hardcore punk band from Washington DC

4th: Kombat is a Streetpunk / Oi! band with inspiration from bands like The Virus, Broken Cuffs, and The Ramones. Staying true to Street Punk with simple, melodic hooks. Past members of Knoxious, Oi Story, and Ancesters. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.