What does "military courtesy" encompass?

Military courtesy encompasses respectful behavior and adherence to proper salute protocols, which are fundamental components of military culture and discipline. This concept is critical in developing mutual respect and professionalism among service members. Showing respect—through actions like saluting superiors and demonstrating decorum in interactions—helps maintain the structure and hierarchy essential for effective military operations. Proper salute protocols, for example, serve not only as a sign of respect but also as a means of recognizing rank and ensuring orderly conduct within the armed forces.

The other choices, while relevant to military life in different ways, do not accurately reflect the core aspect of military courtesy. Following orders is more about obedience than courtesy; understanding military strategy pertains to tactical knowledge rather than behavior; and physical training standards relate to fitness requirements, not the respectful behavior that defines military courtesy.