WMG / The Last Days Of The Third Age Of Middle Earth

Umbar and Harad are Token Good Teammate of Sauron.
They act exactly like the other evil factions, but:
  • In-universe they joined Sauron because of an Enemy Mine situation (both are enemies of Gondor)
  • In the game they are the only evil factions which faces, armors, and weapon do not scream "Evil!" at first sight
http://tvtropes.org/pmwiki/pmwiki.php/WMG/TheLastDaysOfTheThirdAgeOfMiddleEarth