article_snippet.sent: An international coalition responded, first by airdropping supplies in the mountains.
article_snippet.sent: And then, starting in August, the United States and other nations conducted airstrikes targeting ISIS in Iraq and Syria.
article_snippet.sent: CNN's Raja Razek reported from Beirut.
article_snippet.sent: CNN's Jason Hanna wrote from Atlanta.
article_snippet.sent: CNN's Hamdi Alkshali, Faith Karimi and Yousuf Basil contributed to this report.