More on the War

The Minions of Sauron, including the Zaugurz, all share the same
Warlords list. Since the Zaugurz are at a tribal war with the other
races under the Dark Lord's shadow, any kills in that war will make
the winner gain fame. However, such tribal fights will not affect the
balance between the Armies of the West and the Forces of the Dark Lord
(i.e., in "view war").

- Manwë and Dáin