20th BS flies over Vegas during Red Flag Published Feb. 6, 2013 By Airman 1st Class Joseph A. Pagán Jr. Air Force Global Strike Command Public Affairs BARKSDALE AIR FORCE BASE, La. -- AIrmen from the 20th Bomb Squadron participate in Red Flag, a two-week, multinational advanced aerial combat training exercise, at Nellis Air Force Base, Nev., Jan. 19-Feb. 2, 2013. To see the photos from the exercise click here: www.afgsc.af.mil/photos/slideshow.asp