An air echelon escorting flags take part in a military parade celebrating the 70th founding anniversary of the People's Republic of China (PRC) in Beijing, capital of China, Oct. 1, 2019. (Xinhua/Deng Hua)
An air echelon escorting flags take part in a military parade celebrating the 70th founding anniversary of the People's Republic of China (PRC) in Beijing, capital of China, Oct. 1, 2019. (Xinhua/Deng Hua)
