Two large transport aircraft Y-20s arrive at Wuhan's Tianhe International Airport successively on the morning of February 13, 2020. A total of 11 transport aircraft attached to the Chinese People's Liberation Army (PLA) Air Force, including Y-20s, Il-76s and Y-9s, arrived at Wuhan on Feb. 13 from multiple locations across China, carrying military medical teams and tons of medical supplies. This was the first time for China's domestically developed large transport aircraft Y-20s to take part in military operations other than war (MOOTW). It was also the first time for the PLA Air Force to send large and medium active-duty transport aircraft to carry out urgent air transport tasks on a large scale. (jmhuiquan.com/Photo by Fan Xianhai)