This is a guest post from Paul Poast, an assistant professor in the Department of Political Science at the University of Chicago. “Americans can always be trusted to do the right thing, once all other possibilities have been exhausted.” That was Churchill’s summary of US foreign policy. After US President Trump’s call for “huge” monetary payments by allies hosting US troops, it seems the US is again pursuing “other possibilities.” Just as complaints about “free-riding” allies are a regular occurrence, the US poorly treating its allies is not new. Many have lamented “American hubris”,...









