What Army regulation prescribes the policies and responsibilities of command?

The correct answer, which is AR 600-20, outlines the policies and responsibilities of command within the Army. This regulation is crucial because it establishes the framework for command authority, the responsibilities of leaders, and the overall expectations for the command climate. It details how leaders should create an environment that fosters good order and discipline, respects individual rights, and promotes a professional atmosphere.

AR 600-20 addresses various aspects of command, including the roles and responsibilities at different levels, the importance of communication within the chain of command, and the processes for handling issues related to personnel management and soldier welfare. This makes it an essential reference for leaders in promoting effective command and control within their units.

The other options, while related to Army operations and policies, serve different purposes: FM 7-22 deals with physical fitness training, DA PAM 600-3 focuses on the total Army personnel system and talent management, and AR 670-1 pertains to the wear and appearance of Army uniforms. Each of these plays a significant role in Army operations but does not specifically address command policies and responsibilities like AR 600-20 does.