The Master-at-Arms (MA) rate is responsible for security, anti-terrorism, investigations, and protecting high-value assets across Navy installations and ships worldwide.

This detailed guide walks through each MP path—Army MPs, Navy Master-at-Arms, Marine 5811s, Air Force Security Forces, and Coast Guard Maritime Enforcement Specialists.

After 23 years of serving in the U.S. Navy, Master-at-Arms Senior Chief Petty Officer KC Dueñas got the opportunity to come home for Duluth Navy Week.

Petty Officer 3rd Class Antonio Vallerga is a master-at-arms serving at Naval Support Facility Deveselu in Romania, one of the Navy’s newest commands defending against the threat of ballistic ...