Andrew Mauk, counter Improvised Explosive Device instructor, Marine Corps Engineer School, teaches ITX for Spouses participants how to sweep for IEDs at Range 800 aboard Marine Corps Air Ground Combat Center, Twentynine Palms, Calif., March 30, 2017. (U.S. Marine Corps photo by Cpl. Connor Hancock) - Andrew Mauk, counter Improvised Explosive Device instructor, Marine Corps Engineer School, teaches ITX for Spouses participants how to sweep for IEDs at Range 800 aboard Marine Corps Air Ground Combat Center, Twentynine Palms, Calif., March 30, 2017. (U.S. Marine Corps photo by Cpl. Connor Hancock)