Aaron does have a dream to stop all the madness happening in his country.
He wanted to stop the Copulation event. Even though he didn't know how to do it, he had always been determined to end all that nonsense. Apparently, God answered his prayer. He was allowed to meet the rebels and is now part of the rebels as well.
Even so, the cout d'etat plan that Cakara revealed made him more or less nervous. Cout d'etat is carried out through war. Even though he knew for sure that war never brought good.
He was worried about the fate of his parents and younger siblings who were still in Makara.
