Vehicle-mounted mortars fire in a military presentation in Korla, northwest China's Xinjiang Uygur Autonomous Region, Aug. 3, 2019. The opening ceremony for the competitions hosted by China as part of the International Army Games 2019 was held on Saturday in Korla, northwest China's Xinjiang Uygur Autonomous Region. The Chinese army will host four contests in areas such as infantry combat vehicles and weapon repair. Teams coming from 12 countries in Asia, Europe, Africa and South America will take part. (Photo by Zhao Zhiguo/Xinhua)