Here is a look at the F-16, why Ukraine wants it and why the Biden administration is hesitant to supply it.
It has flown in American conflicts in Afghanistan, Iraq, Kosovo, the Persian Gulf and on homeland defense missions in U.S. airspace.
There are approximately 3,000 currently in active military service worldwide, including hundreds in the U.S. Air Force and Navy.
Without modern fighter jets, “no air defense system will be perfect,” President Volodymyr Zelensky told European leaders gathered at a summit in Reykjavik, Iceland, this week.
He also said it would be unlikely for Britain, with its “special relationship” with America, to push ahead with trying to provide F-16s if the Biden administration was not at least somewhat on board.