Ukrainian President Volodymyr Zelenskyy met U.S. President Donald Trump at Mar-a-Lago in Palm Beach, Florida, today, with Zelenskyy stating key issues remain unresolved in U.S.-Ukraine talks on ending Russia's war, according to an Associated Press report cited in an X post by @typocatCAv2 over the past hour. The AP article details ongoing discussions on territory and security guarantees, linked via https://x.com/typocatCAv2/status/2005084131462717584 between 12:45 a.m. and 1:45 a.m. UTC on December 28, 2025. In related military activity, Exilenova+ reported videos showing a direct hit on a substation near Syzran's oil refinery in Samara Oblast, Russia, causing a power outage in part of the city, along with two strikes on the refinery itself, during the reporting window from 12:45:55 a.m. to 1:45:18 a.m. UTC on December 28, 2025. This follows earlier strikes on the Syzran facility reported between 10:15 p.m. UTC on December 27 and 12:45 a.m. UTC on December 28, including a fire near the refinery noted by X user @Maks_NAFO_FELLA and additional hits confirmed by Exilenova+, amid Ukrainian drone operations targeting Russian energy infrastructure.