The science and art of disposing military and naval forces in order for battle, and performing military and naval evolutions. It is divided into grand tactics, or the tactics of battles, and elementary tactics, or the tactics of instruction.
- The military science that deals with securing objectives set by strategy, especially the technique of deploying and directing troops, ships, and aircraft in effective maneuvers against an enemy: Tactics is a required course at all military academies.
- Maneuvers used against an enemy: Guerrilla tactics were employed during most of the war.
- A procedure or set of maneuvers engaged in to achieve an end, an aim, or a goal.