Which doctrine document provides guidance on the conduct of combined arms operations?

The selected answer emphasizes that FM 3-0, Operations, serves as the primary doctrine document for combined arms operations within the Army. This document is fundamentally focused on understanding how to integrate and synchronize the capabilities of different branches and types of forces to achieve a common objective on the battlefield. It details the principles and methodologies required for effective combined arms operations, making it essential for leaders to understand how these diverse forces can work together optimally.

FM 3-0 covers not only the tactical aspects but also the operational framework necessary to execute successful missions in various operational environments. By anchoring combined arms operations within the broader context of operational art and campaigns, the document provides a comprehensive approach that leaders can apply, ensuring they are better prepared to face complex battlefield scenarios.

In contrast, the other documents, while important to military operations, do not primarily focus on combined arms operations in the same extensive manner. ADRP 5-0 and FM 6-0 deal more with the operations process and mission command principles rather than the integration of combined arms specifically. FM 7-100 addresses broader aspects of full spectrum operations but lacks the concentrated guidance found in FM 3-0 regarding the essential integration of combined arms in battle.