LTG Sean MacFarland is a retired three-star general who served in the United States Army. In 2015 LTG MacFarland, then commanding III Corps, was selected as commander of the coalition against ISIS in Syria and Iraq. LTG MacFarland and III Corps thus became responsible for Combined Joint Task Force - Operation Inherent Resolve. LTG MacFarland handed over command to LTG Stephen J. Townsend and the XVIII Airborne Corps in August 2016. He became deputy commanding general and chief of staff for the United States Army Training and Doctrine Command in April 2017, and retired from active duty 27 February 2018.