Russian prosecutors alleged Stephen Hubbard joined a Ukrainian territorial defense unit for $1,000 per month, while his family and U.S. officials maintained the mercenary charges were fabricated

From the articleUS Citizen Accused By Moscow Of Fighting For Ukraine Released From Russian PrisonAlso in Detained American Stephen Hubbard released by Russia as Witkoff meets Putin, Russia frees 74-year-old American Stephen Hubbard it captured in occupied Ukraine | CNN, Russia frees retired US schoolteacher Stephen Hubbard in goodwill gesture as Putin meets Witkoff