A post shared by First Lady Dr. Jill Biden (@flotus)A post shared by First Lady Dr. Jill Biden (@flotus)Mr. Biden has not traveled to Ukraine, though he visited Eastern Europe in March.Biden's unannounced stop in Ukraine is the first by the spouse of a sitting president to a war zone since Laura Bush visited Afghanistan in 2008.
The former first lady also visited Afghanistan in 2005. Michelle Obama in 2015 traveled to Al Udeid Air Base in Qatar, which has been designated a combat zone since 1991, to meet with troops.
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