Torchbearers Zhang Wenxiu (L) and Wang Hao attend the opening ceremony of the 7th CISM Military World Games in Wuhan, capital of central China's Hubei Province, Oct. 18, 2019. (Xinhua/Cheng Min)

Torchbearer Liu Yudong lights the cauldron during the opening ceremony of the 7th CISM Military World Games in Wuhan, capital of central China's Hubei Province, Oct. 18, 2019.(Xinhua/Jin Liangkuai)

The Chinese national flag is raised during the opening ceremony of the 7th International Military Sports Council (CISM) Military World Games in Wuhan, capital of central China's Hubei Province, Oct. 18, 2019.(Xinhua/Wan Xiang)

International basketball referee Wen Keming takes the oath on behalf of all judges and referees during the opening ceremony of the 7th International Military Sports Council (CISM) Military World Games in Wuhan, capital of central China's Hubei Province, Oct. 18, 2019.(Xinhua/Xiong Qi)

Chinese volleyball player Yuan Xinyue takes the oath on behalf of all athletes during the opening ceremony of the 7th International Military Sports Council (CISM) Military World Games in Wuhan, capital of central China's Hubei Province, Oct. 18, 2019.(Xinhua/Xiong Qi)

Herve Piccirillo, president of the International Military Sports Council (CISM), addresses the opening ceremony of the 7th CISM Military World Games in Wuhan, capital of central China's Hubei Province, Oct. 18, 2019. (Xinhua/Li Gang)

Delegation of China enter the stadium during the opening ceremony of the 7th CISM Military World Games in Wuhan, capital of central China's Hubei Province, Oct. 18, 2019. (Xinhua/Liu Xu)

The delegation of Bulgaria enter the stadium during the opening ceremony of the 7th International Military Sports Council (CISM) Military World Games in Wuhan, capital of central China's Hubei Province, Oct. 18, 2019. (Xinhua/Xiong Qi)

The delegation of Cameroon enter the stadium during the opening ceremony of the 7th International Military Sports Council (CISM) Military World Games in Wuhan, capital of central China's Hubei Province, Oct. 18, 2019. (Xinhua/Jiang Kehong)

Photo taken on Oct. 18, 2019 shows a view of the opening ceremony of the 7th International Military Sports Council (CISM) Military World Games in Wuhan, capital of central China's Hubei Province.(Xinhua/Li Ga)

Photo taken on Oct. 18, 2019 shows a view of the opening ceremony of the 7th International Military Sports Council (CISM) Military World Games in Wuhan, capital of central China's Hubei Province.(Xinhua/Li Ga)

Photo taken on Oct. 18, 2019 shows a view of the opening ceremony of the 7th International Military Sports Council (CISM) Military World Games in Wuhan, capital of central China's Hubei Province.(Xinhua/Li Ga)