If there’s been a recent throughline or theme on this season of War College, it’s that war has changed. And it’s not just conflict, but the way we cover conflict. Increasingly, people are using open source intelligence and social media to study and report on the changing nature of conflict.

Calbre Obscura is one of those people. He’s an independent arms researcher interested in non-state groups in the Middle East, North Africa, and Asia. He is extremely online, and he knows more about AK variants and homemade mortar rounds than anyone else in the world. Follow him online @CalibreObscura and visit his website at calibreobscura.com.

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