=| 1st Marine Division |= #32602317
Description
The 1st Marine Division is a Marine division of the United States Marine Corps headquartered at Marine Corps Base Camp Pendlton, California. It is the oldest and largest active duty division in the United States Marine Corps, representing a combat-ready force of 22,000 personnel. It is one of three active duty divisions in the Marine Corps today and is a multi-role, expeditionary ground combat force. It is nicknamed "The Blue Diamond"
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 We do not publish numbers we have not measured.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 |
|---|---|---|
| 27 Aug 2026, 05:24 | 2 | first reading |
Ownership
Owned by user #4682412030 as measured.
Members we’ve seen
Sikorsky (@SikorskyTactical) — Major [O-4] (rank 18) terminated
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.