Russia has lost 830,190 troops in Ukraine since the beginning of its full-scale invasion on Feb. 24, 2022, the General Staff of Ukraine's Armed Forces reported on Jan. 25.This number includes 1,720 casualties Russian forces suffered just over the past day.According to the report, Russia has also lost 9,868 tanks, 20,549 armored fighting vehicles, 35,124 vehicles and fuel tanks, 22,323 artillery systems, 1,263 multiple launch rocket systems, 1,050 air defense systems, 369 airplanes, 331 helicopters, 23,253 drones, 28 ships and boats, and one submarine.Russia’s Ryazan oil refinery in flames after drone strike, reports sayThe reported strike comes two nights after Ukrainian forces launched a joint attack against the refinery that allegedly damaged multiple on-site facilities.The Kyiv IndependentAbbey Fenbert