USM | Master At Arms | MAA #15427571
Description
United States Navy Master At Arms "Devotion to duty, and personal integrity above all" The Master-at-Arms (MA) rating is responsible for law enforcement and force protection in the United States Navy ORGANIZATION: Shore Squadron: Conducts garrison security of USM installation, enforcing laws and punishing offenders. Field Squadron: Utilized for expeditionary policing operations, working with enemy prisoners of war, establishing field prisons, and working with intelligence organizations to extract valuable information from the adversary in austere environments. Protection Squadron: Tasked with the protection of designated VIP's. Trained and capable in hostage rescue situations, security, and crowd control. NCIS: Houses the Criminal Investigations Division, which conducts internal investigations and audits of the USMG.
Written by the group; not a statement by this register.
Membership history
Growth
Growth history is still building. We hold one measurement for this entry. A trend needs at least two, taken days apart — so this will fill in on its own rather than being estimated. We do not publish numbers we have not measured.
| Measured (UTC) | Members | Change |
|---|---|---|
| 16 Aug 2026, 04:55 | 3 | first reading |
Ownership
Owned by @USM_HOLDER2 as measured.
Members we’ve seen
@USM_HOLDER2 — PRES | President (rank 255)
A sample — only members this register has independently measured, highest rank first. Not the full roster.
Related groups
Groups whose measured members overlap with this one — a sample from our membership graph.
Open data
Download this group’s measured record — free to reuse with attribution: membership history (CSV) · full record (JSON)
Each file carries its licence and retrieval time inside it, and is generated from the same measurements shown above.