Liu Yunshan, a member of the Standing Committee of the Political Bureau of the Communist Party of China (CPC) Central Committee, visits an exhibition after a ceremony held to commemorate the 80th anniversary of the beginning of nationwide war against Japanese aggression at the Museum of the Chinese People's War of Resistance against Japanese Aggression in Beijing, capital of China, July 7, 2017. [Photo/Xinhua]

About 1,000 people, including veterans and relatives of the fallen, attended the ceremony, which was presided over by Liu Qibao, member of the Political Bureau of the CPC Central Committee.

On July 7, 1937, Japanese soldiers attacked Chinese forces at the Lugou Bridge in suburban Beijing, which is recognized as the start of nationwide war against Japanese invasion. Actually, the Chinese people's struggle against Japanese aggression started in September 1931 when Japanese troops began their invasion of northeast China.