In this photo provided by Ukraine's 65th Mechanised Brigade press service, a Ukrainian serviceman prepares to fire a multiple launch rocket system based on a pickup truck in the Zaporizhzhia region, Ukraine, Tuesday, April 8, 2025, (Andriy Andriyenko/Ukraine's 65th Mechanised Brigade via AP) Ukraine’s claim that significant numbers of Chinese nationals are fighting for Russia’s invading army is “totally unfounded,” a Beijing official said Wednesday, as the U.S. strives to secure a ceasefire in the more than three-year war. Ukraine’s President Volodymyr Zelenskyy announced Tuesday that the Ukrainian military had captured two Chinese men fighting alongside the Russian army on…