text: Chapter 1
  Figure 1-1. Army echelons and the levels of warfare
  TACTICAL LEVEL
  1-14. The tactical level of warfare is the level of warfare at which battles and engagements are planned and
  executed to achieve military objectives assigned to tactical units or task forces (JP 3-0). Activities at this
  level focus on tactics—the employment, ordered arrangement, and directed actions of forces in relation to
  each other (ADP 3-90). Operational-level headquarters determine objectives and provide resources for
  tactical operations. The tactical-level commander uses combat power in battles, engagements, and small-unit
  actions. A battle is a set of related engagements that lasts longer and involves larger forces than an
  engagement (ADP 3-90). Battles can affect the course of a campaign or major operation, and they are
  typically conducted by corps and divisions. An engagement is a tactical conflict, usually between opposing