A tumultuous period between the United States and its traditional allies took another lurch Friday, as NATO nations expressed outrage over remarks from Trump the previous day.

The new furor began when Trump downplayed the willingness of the U.S.’s partners to sacrifice on behalf of the alliance.

“We have never really asked anything of them. You know, they’ll say they sent some troops to Afghanistan, or this or that. And they did — they stayed a little back, a little off the front lines,” Trump said in an interview with Maria Bartiromo of Fox Business.

In fact, many hundreds of non-American NATO troops lost their lives in Afghanistan during the 20-year war there. The fatalities included more than 450 British troops and more than 150 Canadian troops. The anger about Trump’s remarks in those nations was immediate and visceral.