A formation of early-warning radars takes part in a grand military parade celebrating the 70th anniversary of the founding of the People's Republic of China in Beijing, capital of China, Oct. 1, 2019. (Xinhua/Yin Gang)
A formation of early-warning radars takes part in a grand military parade celebrating the 70th anniversary of the founding of the People's Republic of China in Beijing, capital of China, Oct. 1, 2019. (Xinhua/Yin Gang)
