This United States Marine Corps USMC manual, Marine Corps Reference Publication MCRP 7-20C.1 Marine Corps Physical Fitness April 2025, contains guidance for all Marines on how to develop and sustain physical fitness that prepares them for the rigorous physical responsibilities the Marine Corps requires. This publication provides a comprehensive approach to physical fitness, which broadens the scope and creates a more dynamic physical fitness mindset. This approach informs Marines at all levels how to apply physical fitness fundamentals and utilize resources to establish well-rounded skills.