History tells us it's always been that way. It takes overwhelming public support to put our servicemembers in harm's way. Trump has burned too many bridges, he'll never reach the level of support needed.
Reprising "The Art of the Deal" is not the way to conduct foreign policy and dealing with Islamist regimes.
We nuked a country twice partly due to war fatigue.
A hard lesson among many he has had to experience to fully appreciate the level of corruption (without and within) and that ethics/morality do not translate between cultures with equal measure.