Spc. William Yankasky from Clearfield, Pa., with the 28th Military Police Company, 103rd Engineer Battalion, 213th Regional Support Group, Pennsylvania Army National Guard, allows a vehicle to enter the structure collapse training site here May 13, 2014. The 28th MPs secured the perimeter around the training site during Vigilant Guard 2014, a statewide exercise that challenges first responders, hosted by the Pennsylvania National Guard.