A 36th Expeditionary Maintenance Squadron crew chief, conducts post flight maintenance on a B-2 Spirit after its arrival at Andersen Air Force BAse, Guam Feb. 23. More than 250 Airmen and four B-2 Spirits, deployed from Whiteman Air Force Base, Mo., began arriving here Feb. 23, to replace the 23rd Expeditionary Bomb Squadron and its B-52 Stratofortress as the Pacific regions Continuous U.S. Bomber Presence.(U.S. Air Force photo by Senior Airman Ryan Whitney)