The B-29 Superfortress bomber is a four-engine heavy-duty (the B-36 Peacemaker bomber will be a medium-sized) propeller strategic bomber designed and produced by the Boeing Company of the United States. The B-29, which mainly serves in the U.S. military, is the main strategic bomber of the U.S. Army Air Forces in World War II and the Korean War and other Asian battlefields.The B-29 was not only the largest aircraft in the air forces of various countries during World War II, but also one of the most advanced weapons that incorporated various new technologies at that time. The new design of the B-29 includes: pressurized cabin, central fire control system, remote control machine gun turret, and more. The original design concept of the B-29 was to perform high-altitude precision bombing missions during the day, but when it was actually used on the battlefield, the B-29 mostly performed missions at night, dropping a large number of incendiary bombs at low altitudes for large-scale incendiary bombing. The B-29 air fortress was the main force of the US military's incendiary air raids on major cities in Japan at the end of World War II. From February 23 to February 25, 1945, the commander of the 21st bomber unit of the United States Curtis. General Li Mei commanded more than 170 sorties of B-29 Air Fortress bombers and flew over Tokyo, Japan on the night of the 23rd. The U.S. military immediately dropped a large number of napalm bombs over Tokyo at low altitudes, causing a large area of ??Tokyo to fall into a short period of time. In the sea of ????fire, it is estimated that as many as 100,000 Japanese civilians died in the fire caused by the burning of napalm. In this air raid, Tokyo experienced continuous devastation for several days, causing about 4/1 of Tokyo to be razed to the ground. The important strategic bombing of Japan carried out by the United States during World War II was called the "Lee Mei Fire Attack", which was an important but also controversial bombing