This Washington Post article represents the dumbest analysis of international relations I have ever read.
"The United States has made the same mistake in evaluating
fighters from the Islamic State that it did in Vietnam — underestimating
the enemy’s will, according to James Clapper, the director of national
Saving South Vietnam was a hopeless cause and we put infinitely too much effort into it. There should have been no 'war' in Vietnam for the US. And our only mistake in Iraq was going there in the first place. Having done that, leaving as gingerly and honorably as possible is our best overall strategy. it was brilliant strategy on the part of president Obama not to keep US forces there indefinitely because it showed the world that we were no longer the evil occupying power the Bush administration had made us. Therefore, when the inevitable challenges came to the region (all caused by the vacuum we created by killing S Hussein) the whole world is now willing to join with us again, as they did in Afghanistan. President Obama has regained respect for the USA in the eyes of the world and our renewed coalitions give hope for a better future.