When it comes to synonyms for the phrase "army rules," there are quite a few options available. One alternative is "military regulations," which refers to the specific guidelines and protocols set forth by the armed forces. Another possible synonym is "commandments," which carries a more authoritative connotation and refers to the orders given by high-ranking military officials. "Disciplinary measures" is another phrase that could be used in place of "army rules," as it pertains to the consequences for breaking military protocol. Additionally, "duty requirements," "code of conduct," and "protocols" can all be used as synonyms for the phrase "army rules".