Senior Airman Nicholas Moreno, 36th Security Forces Squadron entry controller, directs an uninjured bystander to a secure location as part of a massive accident response exercise Feb. 3, 2016, at Andersen Air Force Base, Guam. This exercise tested Andersen AFB’s emergency readiness to prepare for the Pacific Air Partners Open House that is scheduled for Feb. 20. (U.S. Air Force photo/Airman 1st Class Jacob Skovo)