In truth, Aran's plan has already been set in motion the moment he landed in the capital of Ruth. The Jue Division handled most of the outside affairs and was near the border of the Kingdom while the other divisions have their own domain in some parts wherein the enemies wouldn't really catch them. This is the reason why they have more information better than those who are managing the Knights in the capital.
Sitting on his office chair while listing down the suspicious activities outside the border is none other than Henry. The General Commander of the League of Knight who's handling all of the forces inside the capital—Knightstar.