Campaigning (Marine Corps Doctrinal Publication 1-2), published by the United States Marine Corps, outlines the fundamental principles of military campaigning, focusing on the operational level of war. It explains how tactical actions are linked to broader strategic goals, emphasizing the need for operational commanders to think beyond immediate combat. The publication teaches Marine leaders to use resources effectively to achieve strategic objectives, framing tactical successes within larger campaign plans. This doctrinal guide also explores the relationship between strategy, operations, and tactics, crucial for leaders in complex, modern warfare