Aircraft fly during a preview of the 2025 aviation open-day activities of the Chinese People's Liberation Army Air Force and Changchun Air Show in Changchun, northeast China's Jilin Province, 16 September 2025. The 2025 aviation open-day activities of the Chinese People's Liberation Army Air Force and Changchun Air Show will be held on 19 September 2025. Xinhua News Agency/EPA)
