An air echelon escorting flags flies over 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/Liu Xu)
An air echelon escorting flags flies over 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/Liu Xu)
