Mount Sinjar in northern Iraq.<br/> <br />It's to this desert mountain top that tens of thousands of minority Yazidis have fled -- and now scramble for humanitarian aid.<br/> <br />Sunni militants from the Islamic State had ordered them to convert -- or die.<br/> <br />The militants have beheaded and crucified some of their captives, in their drive to eradicate unbelievers and other minorities like Christians.<br/> <br />Some 4,000 Christians from a nearby province have fled the fighting.<br/> <br />They've taken refuge at this church in central Arbil, the horror still fresh in their minds.<br/> <br />(SOUNDBITE) (Arabic) DISPLACED CHRISTIAN WOMAN, ANETA, SAYING:<br/> <br />"(crying). We don't need anything, we just need a solution. We want to return to our homes and die there. Let them kill us, or we want a solution. The children are dying."<br/> <br />But church walls can't guarantee their safety.<br/> <br />The militants have advanced to only a half hour's drive from Arbil.<br/> <br />The U.S. has called the persecution of these mi
