An air echelon flies over the Tian'anmen Square during the celebrations marking the 70th anniversary of the founding of the People's Republic of China (PRC) in Beijing, capital of China, Oct. 1, 2019. (Xinhua/Jin Liangkuai)
An air echelon flies over the Tian'anmen Square during the celebrations marking the 70th anniversary of the founding of the People's Republic of China (PRC) in Beijing, capital of China, Oct. 1, 2019. (Xinhua/Jin Liangkuai)
