This United States Marine Corps USMC manual, Marine Corps Warfighting Publication MCWP 3-31 Marine Air-Ground Task Force Fire and Effects May 2024, sets forth the doctrine for fires and effects in Marine air-ground task force (MAGTF) operations. It applies to all Fleet Marine Forces (FMF), but its focus is at the Marine expeditionary force level. Other MAGTFs will differ in scope and scale and FMF may be tasked to conduct operations outside the MAGTF construct. Regardless of size or task organization, FMF plan and execute the fires warfighting function using the basic precepts provided in this publication. This publication addresses integrating and synchronizing MAGTF capabilities to create lethal and nonlethal effects. It defines the new fires and effects coordination center's roles and responsibilities and incorporates a holistic approach to integrating fires and effects throughout the competition continuum. The MAGTF fires and effects integration methodology provides a systematic approach to planning, integrating, executing, and assessing fires and information activities used to shape enemy, adversary, neutral, and friendly entities and systems in the battlespace. This publication also provides considerations for integrating United States Marine Corps fires and effects into a maritime force. This publication supersedes MCWP 3-31, Marine Air-Ground Task Force Fires, dated 3 June 2011, erratum dated 2 May 2016, and change one dated 4 April 2018.