Jim Mattis: Duty, Democracy and the Threat of Tribalism

"Unlike in the past, where we were unified and drew in allies, currently our  own commons seems to be breaking apart. What concerns me most as a military man is not our external adversaries; it is our internal divisiveness. We are dividing into hostile tribes cheering against each other, fueled by emotion and mutual disdain that jeopardizes our future, instead of rediscovering our common ground and finding solutions. ......On each of our coins is inscribed America's de facto motto, "E Pluribus Unum" -- from many, one. For our experiment in democracy to survive, we must live that motto."