User blog comment:Xaero Dumort/Just announced: Mass Effect 3 : Retaliation/@comment-1786741-20121005180140/@comment-1679409-20121007062950

Remember, though, that the volus homeworld has fallen while the turians are fighting a losing battle for their own homeworld as well as protecting the Citadel. I can definitely see desperation leading some volus to fight.