Last August, the world watched in horror as Mt. Sinjar, in northern Iraq, became the scene of some of the worst atrocities of ISIS, the Islamic State. It has murdered, raped and enslaved an entire town of Yazidi people, who practice a different form of Islam. Today, backed by US airstrikes, Kurdish Peshmerga forces began an effort to take back the town. BuzzFeed correspondent Mike Giglio, who joins us from a Peshmerga base near Sinjar, has more on the offensive.