But Mattis’ criticism has broader application. Trump, who famously called the NATO alliance “obsolete,” has only grudgingly endorsed the North Atlantic Treaty Organization’s principle of the concept of collective self-defense, and has focused more on carping about how European allies aren’t paying their “fair share of NATO.” This despite the fact that, as Mattis noted, members of NATO fought alongside the U.S. after the 9/11 attack.
Source: latimes.com – Los Angeles Times