FILE -- In this Monday, Nov. 7, 2016, file photo, this frame grab from a video provided by Qasioun a Syrian opposition media outlet, shows U.S.-backed Syrian Democratic Forces fighters stationed near Ein Issa, north of Raqqa, Syria. As the U.S.-led coalition ratchets up military operations in Syria ahead of a long awaited assault on the Islamic State group’s de facto capital Raqqa, the legacy of an Iraqi train and equip program _ though it has had some success _ is also marked by allegations of abuse and $1 billion dollars in unaccounted for weapons, highlighting the perils of empowering local forces in the fight against IS. (Qasioun a Syrian Opposition Media Outlet, via AP, File)
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