Tricky text.

Military strategy is the plan and execution of the contest between very large groups of armed adversaries. It involves each opponent’s diplomatic, informational, military, and economic resources wielded against the other’s resources to gain supremacy or reduce the opponent’s will to fight. It is a principal tool to secure national interests. A contemporary military strategy is developed via military science. It is a subdiscipline of warfare and of foreign policy. In comparison, grand strategy is that strategy of the largest of organizations which are currently the nation state, confederation, or international alliances. It is larger in perspective than military tactics which is the disposition and maneuver of units on a particular sea or battlefield.