User blog comment:Salubri/Gotei 13 vs. Wandenreich: War So Far/@comment-2226235-20140427070813/@comment-5398287-20140427153137

Ichigo is indeed on his way to Soul Society at the moment, but the Royal Guard won't fight unless someone (in this scenario the Wandenreich) attacks the Royal Realm, as their job is to protect the Soul King above everything else.