The Go'chan

This highly aggressive violent silicon based quadraped is a cross between a T-rex, a centaur and has cybernetic upgrades.
After our disastrous first contact with the Go'chan empire, the FWP, the UDP along with other nearby empires have been attacked and harrassed without provocation. Contact with the Go'chan has often been brief and deadly. Aggression and hostility are a part of Go'chan life and they are bred to war and worship fierce God of war along with other warlike Gods involving slavery, bloodshed and crochet knitting.

They are also hostile to Opi-eds, Trizans, UDP, argops and Others. The reason the Trizans have not been at full scale war with us is because they are threatened more by the Gochan.