美国内华达州内利斯空军基地，红旗 12-2 联合空战演习中，美国空军第37轰炸机中队（南达科他州埃尔斯沃思空军基地，37BS）的 B-1B 轰炸机正在起飞。(A U.S. Air Force B-1B Lancer departs for a training mission over the Nevada Test and Training Range during Red Flag 12-2 Jan. 24, 2011, at Nellis Air Force Base, Nev. Red Flag is a realistic combat training exercise involving the air forces of the United States and its allies. The exercise is hosted north of Las Vegas on the NTTR.)
