Must? its a choice. Even more of a choice when you're on top.
Trump might not have a choice not because they don't exist, but because he is incapable of understanding them. He's clear on not believing in win/win scenarios.
He respects them to the extent that you must for competent opponents. Sometimes, you have to play politics. You have to try to get what you want with compliments before you rush to sacrifice American lives and treasure over what might have been settled diplomatically. And sometimes, you have to bide your time for the right moment to show your full hand.