An operation is a sequence of tactical actions with a common purpose or unifying theme. What may they entail? O Carrying on combat, including movement, supply, attack, defense, and maneuvers needed to achieve the objective of any battle or campaign. O Battles, engagements, and strikes, conducted by combat forces of one or more Services, coordinated in time and place, to achieve strategic or operational objectives in an operational area. O A series of related major operations aimed at achieving strategic and operational objectives within a given time and space