Military tactics are the collective name for methods used by units up to a division in strength in engaging and defeating an enemy in combat. Changes in philosophy and technology over time have been reflected in changes to military tactics. Tactics should be distinguished from military strategy, which is concerned with the overall means and plan for achieving a long-term outcome, and operational art, an intermediate level in which the aim is to convert the strategy into tactics. See also Category:Military doctrines and Category:Military strategy