A Greenville County first responder sorts through debris

A Greenville County first responder sorts through debris looking for casualties. South Carolina National Guard units worked with local emergency management agencies and first responders during a mass casualty exercise that covered both Greenville and Anderson, S.C., Mar. 10, 2015, as part of Vigilant Guard S.C. 2015. Vigilant Guard S.C. was an eight-day field exercise held March 5-12, that took place at numerous locations across South Carolina and was used as a way for the National Guard and its local and federal partners to test their response readiness and capabilities to a simulated hurricane and the resulting situations. (U.S. Air Force photo by Senior Airman Christopher Reel/Released)