Alaska Air National Guard Lt. Col. Matthew Kirby, 212th Rescue Squadron commander, leads a “Monster Mash” physical-fitness event for fellow Guardsmen of 176th Wing at Joint Base Elmendorf-Richardson. The event honored fallen service members and included pushing a truck, carrying a raft half a mile, paddling across a wading pond, and carrying a patient-care dummy. (U.S. Air National Guard photo by David Bedard/Released)