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The air operation is a pivotal component of a military campaign that has cost $12.5 million a day in Iraq and Syria. The effort has destroyed hundreds of tanks, artillery pieces, military vehicles, command centers and fighting positions, and killed more..."
http://mobile.nytimes.com/2016/12/25/world/middleeast/aboard-a-us-eye-in-the-sky-staring-down-isis-in-iraq-and-syria.html?partner=rss&emc=rss&referer=
