Intermodal operations are the process of using multiple modes (air, sea, highway, rail,) and conveyances (truck, barge, containers, pallets) to move troops, supplies and equipment through expeditionary entry points and the network of specialized transportation nodes to sustain land forces. This manual, Army Techniques Publication ATP 4-13 Army Expeditionary Intermodal Operations June 2023, introduces Army expeditionary intermodal operations as a capability and describes the roles, responsibilities, and command relationships for planning, executing, and supporting Army terminal operations in theater. This publication applies to the range of military operations. The principal audience for ATP 4-13 is all members of the profession of arms. Commanders and staffs of Army headquarters serving as joint task force or multinational headquarters should also refer to applicable joint or multinational doctrine concerning the range of military operations and joint or multinational forces. Trainers and educators throughout the Army will also use this publication.