Thus until the 17th and 18th centuries strategy included to varying degrees such problems as fortification, maneuver, and supply.
Strategy, for example, literally means 'the art of the general' (from the Greek strategos) and originally signified the purely military planning of a campaign. The change in the meaning of these terms over time has been basically one of scope as the nature of war and society has changed and as technology has changed. The great military theorist Carl von Clausewitz put it another way: 'Tactics is the art of using troops in battle strategy is the art of using battles to win the war.' Strategy and tactics, however, have been viewed differently in almost every era of history. Tactics implement strategy by short-term decisions on the movement of troops and employment of weapons on the field of battle.
Broadly stated, strategy is the planning, coordination, and general direction of military operations to meet overall political and military objectives. Military strategy and tactics are essential to the conduct of warfare.