USA Today: At U.N., Trump's 'me first' doctrine abandons Truman's postwar 'security for all'
Truman would have been appalled to see a U.S. president threatening war and praising national sovereignty as the greatest good.

People need to understand that, while it is important for a leader to protect the people he leads, it’s not a zero sum game to do so. It isn’t every man for himself in the realm of foreign affairs, and to think that it is defeats organizations like NATO, the EU, the UN, organizations that have held together a sustained peace since the end of World War II (and when I say peace, I mean that we haven’t had a cataclysmic world war since Hitler invaded Poland.

People also need to understand that strength doesn’t mean yelling into a microphone that we’ll destroy “Rocket Man’s” country. Strength is understanding what force we have, what diplomatic assets we can flex. Case in point that foreign policy isn’t zero sum: The only way to rein in Kim Jong Un is to work alongside Japan, South Korea, China. If it’s just us against North Korea, well, that doesn’t end well.

So yeah, Trump’s speech was a disaster. He has no idea how foreign policy works because he’s never had to collaborate in any meaningful way towards shared, positive goals.

Every American should be forced to live outside the United States for a year or two. Americans should be forced to see how ridiculous they appear to the rest of the world! They should listen to someone else’s version of themselves–to anyone else’s version! Every country knows more about America than Americans know about themselves! And Americans know absolutely nothing about any other country!
—  John Irving, A Prayer for Owen Meany