Members of the Kentucky Air National Guard 123rd Contingency Response Group coordinate with higher headquarters to control the airflow of simulated disaster-relief supplies into MidAmerica St. Louis Airport in Mascoutah, Ill., on Aug. 7, 2013, as part of Exercise Gateway Relief, a U.S. Transportation Command-directed earthquake-response scenario. The coordination is conducted from a portable structure called a HELAMS, which is short for Hard-sided Expandable Lightweight Air Mobile Shelter. (U.S. Air National Guard photo by Maj. Dale Greer/Released)