Book excerpt: The three most important things the Marine Corps does for the Nation are make Marines, win battles, and return quality citizens. Public affairs (PA) is an integral part of warfighting and solidifies the existing, indispensable bond between the Marine Corps and the American public. Professional, sophisticated PA is just as important as tactics and weapons training. As a powerful, nonlethal capability with application across the range of military operations, PA builds understanding, credibility, trust, and relationships with domestic and foreign publics-publics that are critical to the Marine Corps' mission success and the Nation's larger strategic objectives. Marine Corps Techniques Publication MCTP 3-30F (Formerly MCWP 3-33.3) Marine Corps Public Affairs 2 May 2016, describes Marine Corps doctrine on PA. It provides the requisite information needed by commanders and their staffs to understand PA. Although this publication is particularly relevant for Marine air-ground task force commanders and their staffs, it is important for every Marine to understand the information contained herein. This publication addresses the information environment, the news media, policies and principles governing PA, and command responsibility for PA.