The Defector: A Russian Officer Turned Against His Country and Helped Ukraine Kill Hundreds WSJ - World News By: Annie Ng Emma Brown Matthew Luxmoore 16 October 2026 at 00:45 One of the deadliest saboteurs in recent military history, Lt. Lev Stupnikov fed troop locations and battle plans to the enemy before making a daring escape. © Justyna Mielnikiewicz for WSJ
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