- Service ensign · official · carried by Ground Forces
- State affiliation · Ukraine
- Vigil category device · not official insignia
Identity provenance
Service ensign: Ensign of the Ukrainian Ground Forces — carried by Ground Forces, not issued to this record. The service ensign of the Ground Forces. 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 "Ensign of the Ukrainian Ground Forces.svg", released under PD-UAexMilitary / 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
Mechanized brigade formed in 2016 as an infantry brigade of the reserve corps and re-roled after 2022; publicly documented in the Kherson-oblast fighting of 2022, Bakhmut in 2023 and the Kupiansk and Lyman sectors in 2024; reported to have joined the 3rd Army Corps in July 2025.
- Scope
- Structure, role, lineage and links. No subordinate records published.
- Subordination
- Subordination reported · from 2025-07
- Sources
- 3 on the record
- Record state
- Partial
- Broad area of activity
- Kherson oblast in 2022, Bakhmut in 2023, the Kupiansk and Lyman sectors in 2024; corps sectors since. No current disposition is authored.
- Notable history
- Raised in July 2016 as an infantry brigade of the Ground Forces' reserve corps, it was one of the formations that held Kherson oblast's northern fringe in spring 2022 and pushed the line back village by village through the summer, earning the honorific "Inhulets". Re-equipped as a mechanized brigade, it went to Bakhmut in 2023, to the defence of Kupiansk in January 2024 and to the Lyman sector that spring. In July 2025 it was reported the first of the line brigades to join the new 3rd Army Corps, and its subsequent public rebranding under a new commander is recorded by the same compilation. In 2026 the corps named it among its own brigades in Operation Vivaldi north of Lyman, where, by its officers' account, it fought in all four phases and retook Kolodiazi in the last; its former commander took command of the corps in October 2026.
- Strengths
- A record on three fronts and the staff, training and recruitment pipeline of the corps it joined, built around one of the force's strongest brigades.
- Limitations
- A reserve-infantry origin whose re-roling was done under fire, and the attrition of three years in the war's hardest sectors.
Lineage & institutional history
Raised in July 2016 within the reserve corps. Under the Ground Forces until the 2025 corps reform; public compilation states the brigade joined the 3rd Army Corps in July 2025, and the corps parent is drawn from that compilation and graded reported because no official order has been read.
Related locations
Lyman: Named by the 3rd Army Corps among its brigades in Operation Vivaldi, May–October 2026. No current disposition is authored. Kupiansk: Publicly documented in the defence of Kupiansk in January 2024 before moving to the Lyman sector.
Key events
Operation Vivaldi retakes ground north of Lyman
Ukraine's 3rd Army Corps disclosed on 15 September 2026 an operation it named Vivaldi, after The Four Seasons, which it had run in secret in the Lyman sector since late May. It announced four phases between 15 September and 14 October and said on 19 October the operation was complete, its line on the Chornyi Zherebets river. The corps claims 277 km² and 16 settlements — nine retaken from occupation, seven cleared of infiltration. Independent mapping is lower and lags: the Institute for the Study of War found at least 147 km² around Lyman newly visible in its September mapping, and DeepState confirmed named villages phase by phase. The corps says it struck Russian logistics and drone units deep in the rear before its armour moved; ISW assessed that Ukraine likely neutralised Russian drone defences north of Lyman before the third phase. On 9 October ISW assessed that the operation had defeated the northern arm of a Russian attempt to envelop Sloviansk and Kramatorsk, which it called an operational failure for Russia.
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Assessed as of — 2026-07 Last reviewed — 2026-10-20
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