In the announcement, Obama outlined a four prong strategy against Islamic State: while conducting a “systematic campaign of airstrikes,” the US would “increase our support to forces fighting these terrorists on the ground,” use counter-terrorism capabilities to prevent IS attacks elsewhere, and “provide humanitarian assistance to innocent civilians” displaced by the group.
Initially nameless, the campaign was dubbed “Operation Inherent Resolve” in October 2014. Since then, the US and its allies have flown 53,278 sorties “in support of operations” in Iraq and Syria, conducting a total of 6,700 airstrikes as of September 8, 2015, according to official information provided by the Pentagon.
Some 10,000 IS “targets,” from tanks and vehicles to trenches and oil facilities, have been destroyed. While there is no official body count, IS casualties were estimated at over 8,500 in May of this year. The cost of the campaign has been estimated to be $9.9 million per day, totaling over $3.7 billion as of August 2015.