The real problem with this is that most realms don't trust the other realms on Dwilight. So one, or even a couple, go up against the Zuma and the rest will just sit back grinning at their misfortune. I'd assume.
If you poke the sleeping bear with a pointy stick, expect to get mauled.
Brance doesn't want to get mauled. He saw the battle report from when the Zuma went on the war path last time.