Black to move
2rq3k/6pp/pp1Pp3/3N1p2/P7/3Q1P1R/1P4PP/2rR2K1 b - -
For standing armies, battle is undertaken in accordance with codified tactical prescriptions. On the battlefield, tactics dictate the maneuvers of soldiers in quest of strategic goals, and they standardize individual actions for the common good. Tactics among standing armies, then, are the codified manners in which strategy is carried out.
Richard Allan Fox, Jr., Archaeology, History, and Custer's Last Battle (1993), 10.