Why a Man With U.S. Ties Fought for Russia in Ukraine
Col. Andrei Demurenko’s war story began at Fort Leavenworth, Kan., at a moment of hope and peace. It ended with a mortar blast in Ukraine.
Mr. Demurenko views President Vladimir V. Putin as a savior who restored Russia’s strength and is leading it in battle against an implacable enemy.

© Nanna Heitmann for The New York Times