People visit the exhibition commemorating the 70th anniversary of the Chinese People's Volunteers (CPV) army entering the Democratic People's Republic of Korea (DPRK) in the War to Resist U.S. Aggression and Aid Korea at the Military Museum of the Chinese People's Revolution in Beijing, capital of China, Dec. 13, 2020. The exhibition will last till February of the next year. (Xinhua/Li Jing)