A visitor takes photos of a painting with mobile phone at an exhibition about "Flying Tigers" in southwest China's Chongqing, Aug. 15, 2015. A large amount of photos, paintings and personal belongings about "Flying Tigers" were displayed at the exhibition opened on Saturday. The Flying Tigers, officially known as the American Volunteer Group of the Chinese Air Force, were formed in 1941 and led by U.S. General Claire Lee Chennault to help China drive out invading Japanese troops. (Xinhua/Tang Yi)
