At around 16:00 on January 7th, the Y-20 aircraft of the Air Force of the Western Theater Command arrived at the earthquake stricken area to coordinate and command the earthquake relief work. Dingri Airport has an altitude of over 4000 meters and is characterized by severe cold in winter and lack of oxygen on the plateau. The air force of this theater has instructed its troops to carefully study the environment, finely plan routes, strengthen equipment inspections, improve emergency response plans, and ensure the successful completion of tasks. (New Society)