Security & Law Enforcement (Master-at-Arms)

About the Role

Master-at-Arms (MA) Sailors form the backbone of the Navy's security, antiterrorism, and law enforcement capabilities. Their mission is to protect people, installations, ships, and strategic assets both at home and abroad. From conducting force protection patrols on piers to managing corrections and investigations, MAs operate in diverse environments ranging from aircraft carriers and expeditionary units to strategic weapons facilities.

This role exists to ensure the safety and security of Navy operations through a combination of policing, physical security, and specialized tactical skills. MAs are the first line of defense, responsible for controlling access, inspecting personnel and vehicles, and responding to emergencies with calm judgment and professionalism.

A Day in the Life

You will work in a fast-paced, armed, and safety-critical environment where attention to detail is paramount. Your duties may include standing sentry at access control posts, enforcing traffic regulations, investigating incidents, and operating security vehicles or boats. The work often involves rotating shifts, including nights, weekends, and holidays, to provide 24/7 coverage.

As you progress, you will take on increasing responsibility, potentially qualifying for specialized billets such as patrol supervisor, watch commander, or Military Working Dog Handler. You will work closely with other security forces, Marine units, NCIS, and joint or host-nation partners, integrating into a tight-knit community dedicated to mission success.

Training and Career Path

The journey begins with Recruit Training, followed by Master-at-Arms Class "A" School at Lackland AFB. Here, you will learn the fundamentals of law enforcement, weapons handling, antiterrorism, and security operations. Career development is continuous, with opportunities for advanced schools in areas like harbor security, criminal investigation, and small arms instruction. You will also pursue leadership courses and warfare qualifications as you advance through the ranks.

Joining the Navy

To serve as a Master-at-Arms, you must meet general enlistment standards, including U.S. citizenship or eligible residency, a high school diploma, and the ability to pass medical, physical, and background screenings. A clean legal history and strong moral character are essential for armed law enforcement duties.

If you are interested in this career, the next step is to contact an official Navy recruiter. They can provide the most current information on incentives, specific assignment opportunities, and eligibility requirements, as these details vary based on current Navy needs and policy.

Equal Opportunity

The U.S. Navy is an equal opportunity employer. We consider qualified applicants regardless of race, color, religion, sex, national origin, age, marital status, or disability status.