Children watch videos during the "Great Victory, Historic Contribution" exhibition in Beijing, capital of China, July 14, 2015. A total of 1,170 pictures and 2,834 artifacts are on display at the Museum of the War of Chinese People's Resistance against Japanese Aggression near Lugou Bridge, also known as Marco Polo Bridge, where Japan's full-scale invasion of China began 78 years ago. (Xinhua/Zhang Cheng)
