When Navy Adm. William H. McRaven took the podium at the University of Texas at Austin to deliver the commencement speech for the graduating class of 2014, few people beyond the military’s close-knit special operations community knew who he was.

Those who did probably knew McRaven from “Dirty Wars,” a 2013 documentary marketed as a revelatory investigation into the blood-soaked exploits of the Joint Special Operations Command, or JSOC, which McRaven helmed between 2008–2011.