The uruk are a synthetic race, magically-created hybrids of humans and gargun (mostly Gargu-Khanu or black goblins). Also known as orcs, they were bred as shock troopers during Ragnarök but now live as a free race and are spreading throughout Asgård.
Like trollborn, uruks are not well accepted by most Asgårdian cultures. Not only are they are viewed with antipathy by humans, dwarves and elves; but they are mistrusted (and often mistreated) by trolls and giants. They are held in awe by gargun, however, and often lead tribes of goblins.
Dwarven Glory 