The Information Operations Manual provides the overarching definition, relevance and application of Information Operations in strengthening military power and measuring the effect of Army operations. It focuses on how the prevailing planning and decision making process of the PA are applied in the context of IO in full spectrum of operations. This also sets forth the key elements, concepts, frameworks and principles through which IO activities are anchored on as well as the composition of the information environment; importance of information-related capabilities in support to military operations; and identification of key stakeholders of the various IO activities. It also determines the effective sustainment and depth to which the PA IO can conduct decisive operations in support to its overall mission accomplishment. The PA Information Operations Manual guides and directs Commanders, IO planners and practitioners to seize, retain, and exploit the initiative in the operational and information environments. It applies to the Philippine Army, its commanders, joint task forces, and its subordinate components. The proponent of this manual is the Office of the Assistant Chief of Staff for Civil-Military Operations, G7, Philippine Army. However, Doctrine and Capability Integration Center (P), TRADOC, PA is responsible for the review and updating of this material. Send comments or recommendations to further improve this manual to Commander, TRADOC, PA (Attn: Director, DACIC) or via email at dcannex45@gmail.com and via website at doctrinecenterpa.com. Feedbacks to this publication are also welcome telephonically via the Bonifacio Telephone Exchange trunk line number 845-9555 or military local line number 7650 extension 4971.