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President Biden is heading to Belgium for a NATO summit.
Before departing, he confirmed the threat of chemical warfare in Ukraine is high.
Speaking with reporters on the White House lawn, Biden said the use of chemical weapons as the Russian invasion goes on was "a real threat."
While overseas, Biden is expected to reveal new sanctions against Russia for invading Ukraine when he meets with NATO leaders tomorrow.
There are reports that Biden may also have plans to keep an increased number of troops in NATO countries near Ukraine.