Divide and conquer tactic is not only reserved in military/war. Divide and conquer is an Othering tactic. Promoting model minority myth (which isn’t just an American thing, it’s worldwide) is a divide and conquer tactic. Promoting girl on girl hate, through women game characters as “evil/obstacles” dichotomous stereotypes, is a divide and conquer tactic. Promoting bad/liberal person of color dichotomy, including in games and popular medium (e.g. Bioshock Infinite, as in my previous post) is a divide and conquer tactic.
Divide and conquer, for the sake of maintaining oppressive racist status quo and structures, is not always as obvious.