article_snippet.sent: insurgents last August when they overpowered Kurdish forces in .
article_snippet.sent: the Sinjar area and proceeded to purge northwestern Iraq Yazidi population, .
article_snippet.sent: killing hundreds and taking thousands captive.
article_snippet.sent: The United Nations said last month that the Islamic State may have committed genocide against the minority .
article_snippet.sent: State stronghold of Tel Afar most of the time, but in the days .
article_snippet.sent: another in the Islamic State self-proclaimed caliphate.
article_snippet.sent: State, which has often subjected women to rape or sexual .
article_snippet.sent: The United Nations said last month that the Islamic State may .
article_snippet.sent: have committed genocide against the minority.