By the way Gradius, regarding your comment on how the Umojans still have no army, the only thing I can think of right now that might explain that is via LotV:

After the Slayn, Endion, and Revenscar missions and you're ready to go back to Aiur, if you go to the war council, Vorazun will comment that the Golden Armada had devastated the sector. Now yes, we all know the terran lore part usually focuses on the Dominion, but there are slight touches to the Umojans. It's possible that the Golden Armada had assaulted Umojan worlds too, and their military was completely wrecked because of it in a vain attempt to defend them. That would then explain why 4 years later, they don't really have much of an army or anything like that.