This is from Michael Scheuer, a former CIA officer best known for heading the agency's anti-Bin Laden unit. He states:
"For now, however, the beginning of wisdom is to look at what is going on in Iraq and Syria and see it clearly. In both places all of those folks that multiple U.S. administrations have identified as enemies of America are killing each other. In Syria, the Assad regime, Iran, and Lebanese Hizballah are killing Sunni mujhaedin from all over the world, as well as their local allies and supporters. In turn, the Sunni Islamists in Syria are killing Assad’s troops, Iranian Revolutionary Guards, and Hizballah fighters. This is a perfect circumstance for the United States, all our enemies are killing each other and it is not costing us a cent or a life."
And this conflict is increasingly occuring in Iraq, and to a lesser extent in Lebanon.
It is too early to say if we are approaching a sort of Islamic version of Götterdämmerung, where Islamism and Jihadism are taken to their logical conclusions by opposing elements in an intra-Islamic war. It is however far from impossible.
If so the United States, and indeed the United Kingdom, has no business intervening.