The US attacked ISIS oil wells and refineries to [ cut off its funding ]( http://www.theguardian.com/world/2014/sep/25/analysis-syria-us-air-strikes-oil-wells ) . It seems like an intelligent way to damage ISIS, but it risks causing horrible pollution.
Ссылка: https://stallman.org/archives/2014-jul-oct.html#26_September_2014_%28US_attack_on_ISIS_oil_wells%29