This ringbound book provides a reproduction of an important document from the U.S. Marine Corps, Expeditionary Operations MCDP-3. Expeditionary Operations establishes doctrine for the conduct of military operations by the U.S. Marine Corps. It describes the Marine Corps as an expeditionary force-in-readiness that is manned, trained, and equipped specifically to respond quickly to a broad variety of crises and conflicts across the full range of military operations anywhere in the world. It emphasizes the naval character of Marine Corps forces. This naval expeditionary character provides capabilities both to forward deploy forces near the scene of potential crises as well as to deploy sustainable, combined arms teams rapidly by sea and air. With reduced overseas presence in terms of force levels and bases, these capabilities have become essential elements of our national military strategy. This publication also underscores the value of Marine Corps forces as a highly cost effective option in a wide range of situations, including crises requiring forcible entry. Importantly, this publication establishes versatility and adaptability as critical capabilities in a broad range of circumstances for expeditionary forces in an uncertain world. Finally, this publication describes the Marine Corps key expeditionary concepts. This publication describes the types of operations of which Marine Corps forces must be capable. Chapter 1 describes the complex and uncertain geopolitical environment near the turn of the 21St century - the environment in which Marine Corps forces will be required to operate. Based on chapter 1, chapter 2 establishes the need for a flexible, naval expeditionary force-in-readiness, describes the requirements of expeditionary operations, and identifies the characteristics and capabilities of Marine Corps forces that satisfy those requirements. Chapter 3 describes the particular expeditionary organizations and forces that the Marine Corps contributes in support of national interests overseas. Chapter 4 describes the operating concepts that underlie the Marine Corps' conduct of expeditionary operations. * Progressive Management has been a leader in military publishing for nearly a decade. Our news and educational titles are privately compiled collections of official public domain U.S. government files and documents - they are not produced by the federal government. They are designed to provide a convenient user-friendly reference work and educational tool.