evidence: Video posted by a pro-war Russian Telegram channel appeared to show Western military vehicles near Ukraine’s border inside Kursk, describing them as part of the incursion. The footage showed at least one U.S.-provided Stryker and a German Mardar fighting vehicle on the Russian side of the border. Ukrainian forces appeared to have marked their equipment for Kursk with painted white triangles. The Washington Post could not independently verify when the footage was recorded. Drone video published on Instagram by a regiment in Ukraine’s military purported to show Russian soldiers in Kursk surrendering. Personnel from Ukrainian units believed to be fighting in Kursk declined to comment, saying operational secrecy was to their advantage.