Ukrainian SBS 'Asgard' battalion of the 412th 'Nemesis' brigade destroyed one BUK and one TOR air defense system in the Gulyaipil and Orihiv areas of Zaporizhzhia Oblast on December 31, 2025, within one hour during the reporting window from 1:45 PM to 2:45 PM UTC, according to the МАДЯР🇺🇦 channel. The special forces unit reported incinerating the high-value targets sequentially, stating that the systems had littered the front line and posed significant threats, with results tracked on the SBS 'PODRAHUYKA' online scoreboard at https://sbs-group.army/. Intense fighting continues in the Kostyantynivka direction, where Russian forces have activated assaults amid challenging conditions for Ukrainian troops over the past hour, according to the HUNGARY 🇺🇦 channel citing preliminary information. Earlier in the Kostyantynivka sector on December 22, Russian forces launched a mechanized attack with three tanks and four IFVs along a specified route near Ivanopillya, all destroyed by Ukrainian units using artillery and drones, as quoted in the report, with the lead tank hit at least 15 times by drones.