BY MATT CANNON AND YEVGENY KUKLYCHEV
Russian President Vladimir Putin declared a “special military operation” underway in Ukraine on Thursday
Putin said he was helping Russian-backed separatist enclaves in eastern Ukraine—Western leaders predicted this would be his pretext for invasion
Explosions have rocked Ukraine’s capital, Kyiv, and second-largest city, Kharkiv
Russian troops have landed in Odessa, crossing the border into Ukraine, Ukraine’s Interior Ministry said. “The invasion has begun,” it warned.