What should a Marine do if it is customary to salute when serving with the Army or Air Force?

When a Marine is serving with the Army or Air Force, it is customary to salute as a sign of respect and adherence to military traditions. The principle behind this is to maintain professionalism and foster good relations between branches of the military. Saluting is a fundamental aspect of military courtesy that symbolizes respect for the rank and position of service members, regardless of their branch.

By saluting as required, the Marine demonstrates mutual respect and facilitates smoother interactions with service members from other branches. This practice helps to avoid misunderstandings that could arise from not following the established customs and traditions, which might be expected by members of the Army or Air Force. Furthermore, it reinforces the integrated nature of joint operations where collaboration among different military branches is common.

In situations where saluting is customary, adhering to this practice is crucial for maintaining the standards and discipline associated with military service, ensuring cohesion and respect among all service members involved.