It's either a preperation to either (a) launch air strikes against Iranian/Syrian targets or (b) positioning forces in place for expected Iranian retaliation to Israeli air strikes.
I have no problem with your assessment.But I won't hold my breath that we will take any "military" punitive action against Iraq, preemptively. The plebiscite doesn't have the will and the politicians won't use their bully pulpits to gin up any support, at this time, to further protect us from the Islamic agenda.