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A top US defense official supported ISWâs continued assessment that Russia is extraordinarily unlikely to use nuclear weapons in Ukraine.Â
Undersecretary of Defense for Policy Colin Kahl stated that the US does not assess that Russia will use nuclear weapons during a House Armed Service Committee hearing on American military support for Ukraine on February 28.Â
ISW has assessed that Russian invocations of nuclear threats and nuclear doctrine are part of an information operation meant to discourage Ukraine and the West but do not represent any material Russian intent to employ nuclear weapons.