Ukrainian forces struck two Russian oil depots in Kaluga and Tula oblasts on the night of January 17 to 18. The Ukrainian General Staff reported on January 18 that Ukrainian Special Operation Forces (SSO) units and other Ukrainian forces struck an oil depot of the Kaluganeftprodukt joint-stock company (JSC) near Lyudinovo, Kaluga Oblast, causing a fire at the facility on the night of January 17 to 18. Kaluga Oblast Governor Vladislav Shapsha claimed on January 17 and 18 that a drone strike caused a fire at an unspecified industrial enterprise in Lyudinovo, Kaluga Oblast, and later added that Russian forces downed seven drones over the region. Russian sources posted footage purportedly showing the fire at the oil depot. The Ukrainian General Staff also reported on January 18 that units of Ukraine's Main Military Intelligence Directorate (GUR) and other Ukrainian forces struck the state-owned "March 8" oil depot in Tula Oblast and noted that there were reports of a fire at the facility. Tula Oblast Governor Dmitry Milyaev claimed on January 18 that drone debris struck an unspecified enterprise in Tula Oblast, causing a fuel tank to catch on fire. Geolocated footage and other footage published by Russian milbloggers showed a fire at an oil depot near Didilovo, Tula Oblast.
The Russian Central Grouping of Forces appears to have assembled a strike group comprised of units of the 2nd and 41st combined arms armies (CAAs) south of Pokrovsk, likely as part of ongoing Russian efforts to intensify offensive operations south and southwest of the town. Ukrainian military observer Kostyantyn Mashovets stated on January 18 that the Russian military command has consolidated elements of four brigades - the 2nd CAA's 30th Motorized Rifle Brigade and the 41st CAA's 35th, 55th, and 74th motorized rifle brigades — and three regiments — the 243rd Motorized Rifle Regiment (reportedly subordinated to 27th Motorized Rifle Division, 2nd CAA) and the 239th Tank Regiment and the 87th Rifle Regiment (both of the 90th Tank Division, 41st CAA) — south and southwest of Pokrovsk between Dachenske and Novotroitske. Mashovets stated that elements of the Russian 55th Motorized Rifle Brigade recently interdicted the T-0406 Pokrovsk-Mezheva Highway and are attacking between Udachne and Kotlyne (both southwest of Pokrovsk). Mashovets stated that elements of the Russian 74th Motorized Rifle Brigade maintain positions on the outskirts of Zvirove (east of Kotlyne) and attacking in the area while elements of the Russian 433rd Motorized Rifle Regiment with support from the 239th Tank Regiment and 87th Rifle Regiment are attacking along the banks of the Solone River toward Solone-Novoserhiivka and Novovasylivka-Uspenivka (south to southwest of Kotlyne). Mashovets stated that elements of the Russian 35th Motorized Rifle Brigade are attacking towards Dachenske-Chyushchyne and Zelene-Chyushchyne (all south of Pokrovsk) and are making marginal advances. ISW has observed reports that all the brigades and regiments referenced by Mashovets are operating south and southwest of Pokrovsk except for elements of the 243rd Motorized Rifle Regiment, which ISW has not previously observed involved in combat operations in Ukraine.
The commander of a Ukrainian drone unit operating in the Pokrovsk direction stated on January 17 that the Russian military command is accumulating forces to advance west of Pokrovsk as part of ongoing Russian efforts to envelop the town but noted that Russian forces are not advancing immediately south of the town. The Ukrainian commander noted that Russian forces are currently focused on interdicting the railway line between Kotlyne and Udachne. Russian milbloggers similarly claimed on January 17 and 18 that Russian forces are advancing southwest of Pokrovsk near Zvirove, Kotlyne, Udachne, Novooleksandrivka, Novoserhiivka, and Sribne and attempting to interdict the E-50 Pavlohrad-Pokrovsk highway west of the town. ISW previously observed indications that the Russian military command defined the 2nd CAA's area of responsibility (AoR) as south and southwest of Pokrovsk and the 41st CAA's AoR as east of Pokrovsk. The Russian military command's decision to establish a strike group comprised of units of both the 2nd and 41st CAAs south of Pokrovsk indicates that Russian forces may be reprioritizing tactical objectives in the Pokrovsk direction to set conditions to exploit more opportunistic avenues of advance closer to Pokrovsk’s immediate flanks. Mashovets noted that elements of the 15th and 30th motorized rifle brigades (2nd CAA) and the 348th Motorized Rifle Regiment (41st CAA) are currently resting and reconstituting in rear areas of the Pokrovsk direction and that it is unclear which sector of this direction the Russian military command will choose to redeploy these forces. The Russian military command may redeploy these units to areas south of Pokrovsk if the Russian command continues to prioritize tactical advances in the direction of Pokrovsk’s southern flanks in the coming weeks and months.
Key Takeaways:
- Ukrainian forces struck two Russian oil depots in Kaluga and Tula oblasts on the night of January 17 to 18.
- Ukrainian forces also struck a Russian air defense system and radars in occupied Ukraine on the night of January 17 to 18.
- The Russian Central Grouping of Forces appears to have assembled a strike group comprised of units of the 2nd and 41st combined arms armies (CAAs) south of Pokrovsk, likely as part of ongoing Russian efforts to intensify offensive operations south and southwest of the town.
- The Russian military command also reportedly redeployed elements of a second unit of the 51st CAA from the Kurakhove direction to offensive operations east of Pokrovsk amid ongoing efforts to intensify activity in this area.
- NATO officials are reportedly preparing for a joint NATO-Georgia exercise scheduled for March 2025.
- Russian forces recently advanced in Kursk Oblast and in the Chasiv Yar and Velyka Novosilka directions.
- Ukrainian forces recently recaptured lost positions in the Kharkiv direction.
| 
[ISW] 러시아 공세 캠페인 평가, 2025년 1월 19일
[ISW] 이란 업데이트, 2025년 1월 18일