Alternative Fact: NATO countries owe money for defence expenditures the US has made.
Real Fact: The target was for member nations to devote 2% of GDP to defence spending. A target is not a guarantee. Not meeting a target may be disappointing, but it doesn’t mean you owe someone money. If your target is to donate 5% of your net income to charity … but at the end of the year have only managed 3%, it does not mean you owe charities 2% of your net income! It means you didn’t meet your goal. Consistently missing goals can also be a clue that the goal is not realistic. Take, for instance, someone whose goal is to donate 80% of their net income to charity. But they also pay their rent/mortgage, buy some food, turn the lights on occasionally. And don’t have 80% of their net income available after covering essentials. The person can commit to the goal and evaluate their other spending (move into a smaller residence, buy cheaper food, conserve on utilities) or they can change their goal to meet the 10% of their net income that is actually discretionary.
Another real fact? NATO countries, by and large, fund their own military. One might make the argument that the US would have been able to scale back the military budget if only other partners increased their expenditures. *But* that’s disingenuous from someone seeking an enormous increase in the military budget whilst questioning the nation’s continued commitment to NATO. But even if the ‘target’ was actually a contractual obligation … it would be to NATO and not the US.