THE CONDUCT OF . ADP 3-0 presents overarching doctrinal guidance and direction for conducting operations. It constitutes the Army's view of how it conducts prompt and sustained operations on land and sets the foundation for developing the other principles, tactics, techniques, and procedures detailed in subordinate doctrine publications. An operation is a sequence of tactical actions with a common purpose or unifying theme. Army forces, as part of the joint force, contribute to the joint fight through the conduct of unified land operations. Unified land operations are simultaneous offensive, defensive, and stability or defense support of civil authorities tasks to seize, retain, and exploit the initiative to shape the operational environment, prevent conflict, consolidate gains, and win our Nation's wars as part of unified action. ADP 3-0 is the Army's basic warfighting doctrine and is the Army's contribution to unified action.