- Service ensign · official · carried by Marine Corps
- State affiliation · Ukraine
- Vigil category device · not official insignia
Identity provenance
Service ensign: Flag of the Ukrainian Naval Infantry — carried by Marine Corps, not issued to this record. The service flag of the Naval Infantry (Marine Corps). The design itself is excluded from copyright by Article 8 of Ukraine’s Law on Copyright and Related Rights, which names symbols and signs of government authorities, the Armed Forces of Ukraine and other military formations. The file shipped is the Wikimedia Commons SVG "Flag of the Ukrainian Naval Infantry.svg", released under PD-UA-exempt on that basis, so no attribution or share-alike obligation attaches. Optimised for web display; geometry unaltered.
State affiliation: Ukraine.
The smaller square mark is a Vigil category device, drawn from this record’s own domain, echelon and role — not an official insignia.
In brief
Marine brigade formed in February 2023 from an existing marine battalion in the corps' expansion, and committed within months to the 2023 southern offensive, where it took Urozhaine with the 35th.
- Scope
- Structure, role, lineage and links. No subordinate records published.
- Subordination
- Subordination confirmed
- Sources
- 3 on the record
- Record state
- Partial
- Broad area of activity
- The Velyka Novosilka axis in the 2023 offensive; the southern front since, by public reporting. No current disposition is authored.
- Notable history
- Formed in February 2023 on the basis of the 503rd Marine Battalion, one of two brigades the naval infantry raised that winter as it grew into the Marine Corps established as a separate arm later that year. It was committed within months to the 2023 southern offensive on the Velyka Novosilka axis, where with the 35th it took Urozhaine in August — an unusually early commitment for a new formation, made possible by the veteran battalion at its core.
- Strengths
- A veteran battalion as its nucleus and the recruitment pull of the Marine Corps brand.
- Limitations
- A short institutional history and a thin public record; like all marine formations in this war it fights as line infantry.
Lineage & institutional history
Predecessors: 503rd Separate Marine Battalion
Assessed as of — 2026-07 Last reviewed — 2026-09-28
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