Ukraine got a signed commitment in 1994 to ensure its security – but can the US and allies stop Putin's aggression now?
- Written by Lee Feinstein, Founding Dean and Professor of International Studies, Hamilton Lugar School, Indiana University
A Ukrainian soldier uses a periscope to view the positions of Russian-led forces on Dec. 12, 2021, in Zolote, Ukraine. Brendan Hoffman/Getty ImagesRussia’s illegal annexation of Ukraine’s Crimean Peninsula in 2014 was the first change of internationally recognized borders in Europe through military force since World War II.
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