Ukrainian service members in Donetsk, Ukraine, July 2022
Gleb Garanich / Reuters

As the world looks on while Ukrainians fight for their lives and their freedom, many feel a burning desire to do more to support them. The problem is not a lack of forces or resources—it is fear of provoking a wider, perhaps nuclear, war with Russia. That fear is why U.S. President Joe Biden and other NATO leaders have consistently made clear that they will not intervene directly in the conflict, instead limiting their help to weapons, money, intelligence, and sanctions. As devastating as events in Ukraine are today, a nuclear war with Russia could kill more people

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