Albus denied in the last war the intervention of the military, because he wanted the magical community to depend on his order and his loyal followers, but with this law, he wouldn’t be able to stop the military from interfering and his people would not get the acknowledgement, they deserved and would not be seen as the people’s heroes and protectors. Albus hoped to use his order, in order to destroy the dark influence in their world, but now everything was negated and the military would not even care about him, but they would fight against him and try to destroy his order and arrest his people.