Command Sergeant Major (CSM) David M. Clark served as the Command Senior Enlisted Leader (CSEL), Resolute Support Mission (RSM), Kabul, Afghanistan from June 2015 through October 2018.

Resolute Support Mission or Operation Resolute Support is a NATO-led train, advise and assist mission consisting of over 13,000 troops in Afghanistan, which began on January 1, 2015. It is a follow-on mission to the International Security Assistance Force (ISAF) which was completed on December 28, 2014.