According to a report on the website of Newsweek on April 20th, the US military has conducted a groundbreaking experiment in which a manned jet fighter engages in aerial combat with an improved F-16 fighter controlled by artificial intelligence (AI). The report states that a heavily modified two seat F-16D X-62A fighter jet (also known as a variable stability flight simulator test aircraft) is facing off against another F-16. The US military stated that these tests demonstrate the possibility of machine learning changing the participation of fighter jets in war. The video released by the Advanced Research Projects Agency of the US Department of Defense on the 17th showed that these two aircraft were entangled in the air at a maximum speed of 1200 miles per hour (approximately 1930 kilometers). The aircraft piloted by artificial intelligence conducted defense and attack exercises, and the closest distance to the manned aircraft was only 2000 feet (approximately 610 meters). This is part of the exercise conducted at Edwards Air Force Base in California last September. The military did not disclose which F-16 won in this line of sight air combat (commonly referred to as "aerial combat"). According to the US News Network "Briefing", this test is a major breakthrough in the Air Warfare Reform Program of the Advanced Research Projects Agency of the Ministry of Defense. Since its launch in 2019, the program has been developing an autonomous combat system for artificial intelligence controlled aircraft. On the 19th, Ryan Hufflen, the project manager of the Air Warfare Reform Program, told the media that "things are progressing according to our expectations, even faster than we hoped, but we cannot provide more details." He said that 2023 is the year when "the Air Warfare Reform Program will implement machine learning into air combat.". US Air Force Secretary Frank Kendall stated in the video that the X-62A team demonstrated how to "safely use machine learning based autonomous systems for dynamic combat flights.". In April of this year, Kendall stated at a hearing in the US Senate that he would "fly an automatic F-16 later this year," with a pilot on board, but only observing the performance of the technology from the sidelines. Kendall said, "I hope neither he nor I need to pilot this plane by then." Bill Gray, the chief test pilot of the US Air Force Test Pilot School, said that the purpose of the X-62 program is not limited to air combat, and this research is also "applicable to every task you can assign to autonomous systems.". (Lai Xin She)