What army customs that became common law?

Answer 1

no hurting the harmful

Answer 2

One example of an army custom that became common law is the salute. Originally introduced as a form of military etiquette to show respect and identify oneself as a friendly soldier, the salute eventually became a standard practice across many armies and was codified as a formal requirement. Another example is the wearing of uniforms. By making it mandatory for soldiers to wear a specific uniform, it became a widely accepted practice that is now legally enforced in many military regulations.