Direct proof of use
The BRM-1K is documented in the 2014 Yemen Civil War through pre-war Yemeni Army inventory evidence. Oryx listed BRM-1K reconnaissance vehicles under armored fighting vehicles in its September 2015 handbook of pre-war Yemeni fighting vehicles, a list it described as covering equipment in Yemeni Army service before the Houthi takeover in 2014 and 2015 and clarifying what military equipment was available to Yemeni battlefield parties.
That evidence supports BRM-1K fielding as inherited armored reconnaissance materiel in the conflict environment. It does not identify a dated BRM-1K sortie, a particular front, a vehicle loss, or a confirmed operator after the army's stocks fragmented.
Sources: Oryx Pre-War Yemeni Fighting Vehicles
Timeline
The relevant sequence begins with the Houthi takeover of Sanaa in 2014, which split state institutions and pushed the war toward a broader contest over Yemeni military stocks. CFR describes the war as beginning when Houthi forces took control of Sanaa in 2014, followed by the January 2015 seizure of the presidential palace and a Saudi-led intervention beginning in March 2015.
Oryx published its pre-war vehicle handbook on September 20, 2015, after the Saudi-led intervention had begun. Its BRM-1K listing therefore documents the type as part of the legacy Yemeni Army armored inventory available during the opening phase of the post-2014 conflict, rather than as a newly supplied coalition system.
Sources: CFR Yemen and Red Sea Tracker, Oryx Pre-War Yemeni Fighting Vehicles
Battlefield role
The BRM-1K is a Soviet tracked armored reconnaissance vehicle derived from the BMP-1 family. Weaponsystems.net describes the vehicle as a reconnaissance system developed to support armored and mechanized formations, with a crew of six, observation equipment, a mast-mounted radar, radios, navigation equipment, and self-defense armament.
In Yemen, the cited evidence supports BRM-1K presence as part of the inherited armored-vehicle stock available to Yemeni parties. It does not support stronger claims about specific reconnaissance missions, combat effectiveness, confirmed losses, or a particular faction's exclusive control of the type.
Sources: Weaponsystems.net BRM-1K Korshun, Oryx Pre-War Yemeni Fighting Vehicles