lol ALL the ships!

Anyhow, SOLDEIR is supposed to be neutral between the species. They are peacekeepers. They *will* protect vampires from extremist humans... although I'd admit that doesn't happen as often. Vampire vs. vampire action they probably wouldn't tend to intervene, but I'm sure they would at least pretend to care if some vampire were flying through the world killing vampires with the intent to eliminate them. 

Currently, SOLDIER is the only thing protecting the local vampires from the Purge invasion. They have no idea Magnus is also coming. 

Two enemies at once? I don't think they would survive that. The vampires could wait out the battle then show up and clean up like Bloodseeker in DOTA2.