Multiple copies of "The A. Forces" are cumulative. For example, if you control 3 Warrior-Type monsters and have 2 copies of "The A. Forces" active, each Warrior-Type monster has its ATK increased by 1200 points.
Multiple copies of "The A. Forces" are cumulative. For example, if you control 3 Warrior-Type monsters and have 2 copies of "The A. Forces" active, each Warrior-Type monster has its ATK increased by 1200 points.