366th Training Squadron civil engineers apprentice course students, test a mobile aircraft arresting system at Sheppard Air Force Base, Texas, March 19, 2019. The arresting system is meant to slow down planes that are landing in "not so ideal" environments. This MAAS is tethered to another MAAS across the field and together they can turn any field, road or freeway into a runway. (U.S. Air Force photo by Airman 1st Class Pedro Tenorio)