President Joe Biden said Thursday that NATO would respond "in kind" if Russia uses weapons of mass destruction in Ukraine. "We will respond if he uses it," Biden said, referring to Russian President Vladimir Putin. NATO Secretary-General Jens Stoltenberg, speaking to reporters from alliance headquarters in Brussels on Wednesday, said using chemical weapons would change the nature of the ongoing conflict in Ukraine. Frustrated with his slow progress in Ukraine, Putin has been increasingly signaling the possibility of using chemical or biological weapons to wipe out entire cities and force the country to surrender. Biden warned earlier this week that Putin was falsely accusing the U.S. and Ukraine of using biological or chemical weapons to possibly justify Russia's own attack on Ukraine.
