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 access control on aircraft carriers, MAs ensure safety in diverse environments ranging from expeditionary units to strategic weapons facilities.

This role is designed for those who thrive in a fast-paced, armed, and safety-critical environment. You will be the first line of defense, responsible for enforcing regulations, investigating incidents, and maintaining order during special events or emergencies. The position offers a clear path for growth, allowing you to specialize in areas such as military working dogs, harbor security, corrections, or criminal investigations as you gain experience and qualify for advanced billets.

What to Expect

Life as a Master-at-Arms demands attention to detail, sound judgment, and unwavering professionalism. You will work in a 24/7 operational environment, often rotating through nights, weekends, and holidays to provide continuous security coverage. The role involves frequent exposure to high-stress situations, requiring calm decision-making and strong communication skills under pressure.

Your day-to-day may involve standing sentry, inspecting vehicles and personnel, operating security vehicles or boats, and supervising junior personnel. As you progress, you will take on increasing responsibility, potentially leading patrols, commanding watch stations, or managing specialized units like kennels or investigative teams. Continuous qualification in weapons, use of force, and physical fitness is a core part of the culture, ensuring you remain ready for any mission.

Training and Career Path

Your journey begins with Recruit Training, followed by the Master-at-Arms Class "A" School at Lackland Air Force Base. Here, you will master the fundamentals of law enforcement, weapons handling, antiterrorism, and security operations. From there, you will report to an operational security force billet at an installation, ship, or expeditionary unit.

Career development is built into the Navy's structure. You will advance through progressive on-the-job qualification and have access to advanced schools that award specific Navy Enlisted Classifications, such as Military Working Dog Handler, Harbor Security Coxswain, or Criminal Investigator. Long-term growth includes leadership courses, warfare qualifications, and senior enlisted leader programs.

Equal Opportunity

The United States Navy is an equal opportunity employer. We consider qualified applicants regardless of race, color, religion, sex, national origin, age, marital status, parental status, sexual orientation, gender identity, genetic information, disability, or protected veteran status. We are committed to building a diverse and inclusive force that reflects the nation it serves.