There's some seriously hawkish shit here but it's worth a read.
There is an assumption in NATO that each country will devote 2% of its GDP to defense. A few do this, but most do not, and Europe as a whole does not come close. The American contribution to NATO is 2.7% of US GDP. The extraordinary fact is not that Trump pointed out this disparity and made clear that it couldn’t continue, but that it took Trump to make this a major issue.