to Korea. It involved the relocation of some 10,000 ground support personnel, leaving a skeleton of air units in China. The move was completed by the end of the month with only minor losses. On 10 August, about 50 P-47s and P-51s from the 14th Air Force attacked river and railroad targets, troops, trucks, and bridges at several points in southern and eastern China. On 15 August, Japan's unconditional surrender was announced, and all offensive operations against Japan ended. On 18 August, the vice-commander of the 24th Pursuit Squadron from the Chinese Air Force, Guo Fengwu flew over Guisui (known as Hohhot after 1954) in Inner Mongolia to drop leaflets which contained the text of Japanese Emperor Hirohito's surrender decree. He was shot down by Japanese anti-aircraft gun fire, and became the last casualty of the Chinese Air Force in the eight-year-long war. On 2 September 1945, hostilities with Japan ended officially with the signing of the instrument of surrender aboard the in Tokyo Bay. CACW Composition Chinese-American Composite Wing (CACW) 1st Bombardment Group 1st Bombardment Squadron 2nd Bombardment Squadron 3rd Bombardment Squadron 4th Bombardment Squadron 3rd Fighter Group 7th Fighter Squadron 8th Fighter Squadron 28th Fighter Squadron 32nd Fighter Squadron 5th Fighter Group 17th Fighter Squadron 26th Fighter Squadron 27th Fighter Squadron 29th Fighter Squadron Aircraft types used Some of the aircraft types used in the Second Sino-Japanese War: Chinese and American Air Units Italian built: Fiat CR-32, biplane fighter British built: Gloster Gladiator, biplane fighter German Built: Heinkel He 50, biplane dive bomber Japanese Built: Nakajima Type 91, parasol monoplane fighter U.S. built: Douglas O-2MC, biplane scout/light bomber Boeing Model 281 (P-26C) Peashooter, monoplane fighter Curtiss XF11C Goshawk (P-6 Hawk II), biplane fighter Curtiss BF2C Goshawk (Hawk III), biplane fighter Curtiss Hawk 75M, monoplane fighter Curtiss P-40 Tomahawk, Warhawk, Kittyhawk, monoplane fighter Vultee P-66 Vanguard, monoplane fighter Republic P-43 Lancer, monoplane fighter Republic P-47 Thunderbolt, monoplane fighter North American P-51 Mustang, monoplane fighter Lockheed P-38 Lightning, twin booms fighter/bomber Lockheed A-29 Hudson, 2-engine medium bomber/reconnaissance North American B-25 Mitchell, 2-engine medium bomber Consolidated B-24 Liberator, long range 4-engine heavy bomber Soviet built: Polikarpov I-15, biplane fighter Polikarpov I-152, biplane fighter Polikarpov I-153, biplane fighter Polikarpov I-16, monoplane fighter Tupolev SB, 2-engine medium bomber Tupolev TB-3, 4-engine long-range heavy bomber Japanese Air Units Kawasaki Ki-10, Army Type 95, biplane fighter (Allied codename Perry) Mitsubishi A5M, Navy type 96, monoplane