The Ukrainian General Staff reported on January 18 that Russian forces used ammunition equipped with chemical agents banned by the Chemical Weapons Convention (CWC) 434 times in Ukraine in December 2024, contributing to a total of 5,389 documented cases since February 2023. Ukraine's radiation, chemical, and biological intelligence units are monitoring Russia's use of banned chemical agents, which include using regulated K-51 and RG-VO grenade launchers to launch munitions containing chemical agents and ammunition containing unspecified hazardous chemicals that are banned in warfare under the 1925 Geneva Protocol and CWC. Ukrainian officials have previously reported on increasingly common instances of Russian forces using chemical substances in combat that are banned by the CWC, to which Russia is a signatory, and the Ukrainian General Staff noted that such violations have been systematic in the Russian military since February 2023.
Both Russian and Ukrainian forces recently advanced in Chasiv Yar amid continued offensive operations in the area on January 19. Geolocated footage published on January 18 indicates that Ukrainian forces recently regained lost positions in the Refractory Plant in central Chasiv Yar. Geolocated footage published on January 19 indicates that Russian forces recently advanced along Tolstoho Street in western Chasiv Yar. Russian milbloggers claimed on January 19 that Russian forces captured the Novopivnichnyi and Desyata microraions in Chasiv Yar, advanced in the workshop area of the Refractory Plant, and in northern Chasiv Yar. ISW has not observed confirmation of these claims, however. Russian forces continued ground attacks within Chasiv Yar itself and south of Chasiv Yar near Predtechyne, Stupochky, and Bila Hora on January 18 and 19. Ukraine's Luhansk Group of Forces Spokesperson Lieutenant Colonel Dmytro Zaporozhets reported on January 18 that Ukrainian forces repelled Russian small and medium-sized assaults on the grounds of the Refractory Plant in central Chasiv Yar. Elements of the Russian 215th Reconnaissance Battalion (98th VDV Division), drone operators of the Russian "Terek" Cossack Reconnaissance Brigade (reportedly of the volunteer Cossack Assault Corps), and drone operators of the Russian "Sever-V" Brigade (Russian Volunteer Corps) are all reportedly operating in the Chasiv Yar direction; additional elements of the Russian 98th VDV Division and elements of the 200th Motorized Rifle Brigade (14th Army Corps [AC], Leningrad Military District [LMD]) are reportedly operating in Chasiv Yar itself.
Key Takeaways:
- The Ukrainian General Staff reported on January 18 that Russian forces used ammunition equipped with chemical agents banned by the Chemical Weapons Convention (CWC) 434 times in Ukraine in December 2024, contributing to a total of 5,389 documented cases since February 2023.
- Russian forces recently advanced in Kursk Oblast and near Kupyansk, Lyman, Chasiv Yar, Toretsk, Kurakhove, and Velyka Novosilka.
- Ukrainian forces recently recaptured lost positions near Chasiv Yar and Toretsk.
- Russian volunteer military detachments continue efforts to boost manpower by recruiting women into the Russian Armed Forces.
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