It was the sort of scene that has become ubiquitous across the Middle East. A small convoy of vehicles, packed with armed men, approach a rickety checkpoint manned by another group of armed men. The cars refuse to stop, a shot is fired, and a gun battle ensues.
That is exactly what happened a few weeks ago in Yemen. Only this time, the men in the vehicles were members of AQAP and the checkpoint was manned by ISIS.
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