Taking Cover Army Pfc. Jalen Welch takes cover during a simulated indirect fire attack while participating in force protection sustainment training at Joint Base Elmendorf-Richardson, Alaska, Feb. 1, 2017. Welch is assigned to the 574th Composite Supply Company, 17th Combat Sustainment Support Battalion, Alaska. Air Force photo by Alejandro Pena SHARE: Download: Full Size (1.96 MB) Credit: Alejandro Pena VIRIN: 170201-F-YH552-027A.JPG Photo Gallery