Lately, ISIS hasn’t been in the news for taking large swaths of territory. But that doesn’t mean that the group is not growing geographically. Other terrorist groups from surrounding countries are joining their club. From PBS: What a pledge of allegiance to ISIS means.

+ “We have heard of the expansion of the Islamic State to New lands, from Yemen to Egypt, Libya and Algeria. We accept their bay’ah [pledges of allegiance].” A new audio recording of the leader of ISIS appears to prove he was not killed in recent airstrikes.

+ A Frontline Documentary: The miscalculations and mistakes behind the brutal rise of ISIS.