Charles Krauthammer: “They [ISIL] count on Barack Obama quitting the Iraq/Syria campaign just as he quit Iraq and Libya in 2011 and is in the process of leaving Afghanistan now. And this goes beyond Obama. They see a post-9/11 pattern: America experiences shock and outrage and demands action. Then, seeing no quick resolution, it tires and seeks out leaders who will order the retreat. In Obama, they found the quintessential such leader. … We tend to forget that at this stage in its career, the Islamic State’s principal fight is intramural. It seeks to supersede and supplant its jihadi rivals – from al-Qaeda in Pakistan to Jabhat al-Nusra in Syria – to emerge as champion of the one true jihad. The strategy is simple: Draw in the world’s great superpower, create the ultimate foil and thus instantly achieve supreme stature in radical Islam as America’s nemesis. It worked. … [W]hen the enemy deliberately brings you into combat, it is all the more imperative to show the world that he made a big mistake.”