> If USA can grant permanent residency in exchange for military service, the whole world will flock to the states. Isn't it an instance of mercenerism? We alre

> If USA can grant permanent residency in exchange for military service, the whole world will flock to the states. Isn't it an instance of mercenerism? We already do, at least during war time. I served with someone who enlisted directly from Mexico and was getting citizenship in return. Other militaries do it with us too, for instance the French Foreign Legion and Australian military recruit heavily out of the US.