July 16th 1945
RUSSIA: Soviet, U.K. and U.S. leaders meet at Potsdam, Germany, to discuss the war with Japan and post-war issues.
USA - At 5:29:45 a.m. Mountain War Time on July 16, 1945 the first Atomic Bomb was exploded at the 'Trinity Site', New Mexico, USA.
"Fat Boy", the experimental plutonium bomb, explodes at 0530 hours local in the first U.S. test of an atomic bomb. The mushroom-shaped cloud rose to a height of 41,000 feet above the New Mexico desert at Alamogordo Air Base. All life in a 1 mile radius had ceased to exist. The bomb was called the "Gadget" and the experiment was called Trinity from a poem by John Donne. The test, conducted in a part of the desert called Jornada del Muerto (Dead Man's Trail), measured the equivalent of 18,600 tons of TNT.
ALEUTIAN ISLANDS (Eleventh Air Force): 2 B-24s fly a negative shipping search mission to Shimushiru Island. 4 B-25s on an enemy shipping sweep deck-level bomb and strafe an enemy freighter; 3 of the bombers then bomb and strafe Torishima Retto, the secondary target.
CENTRAL PACIFIC (Twentieth Air Force): HQ Twentieth AF is officially moved from Washington, DC to Harmon Field, Guam Island; HQ XX Bomber Command is inactivated, effective 18 Jul, and HQ and HQ Squadron XXI Bomber Command is redesignated HQ Squadron, Twentieth AF; thus the Bomber Commands are brought to an end as actual establishments and their wings pass to direct control of HQ Twentieth AF of which Major General Curtis Emerson LeMay takes command on this date. During the night of 16/17 Jul, 469 B-29s fly 4 incendiary raids against Japanese cities without loss.
Mission 271: 119 B-29s attack the Namazu urban area destroying 1.4 sq mi, 89.5% of the city.
Mission 272: 124 B-29s hit the Oita urban area destroying 0.555 sq mi, 25.2% of the city.
Mission 273: 94 B-29s attack the Kuwana urban area destroying 0.63 sq mi, 77% of the city; 2 other B-29s hit alternate targets.
Mission 274: 129 B-29s hit the Hiratsuka urban area destroying 1.04 sq mi, 44.2% of the city; 1 other hits an alternate target. During the day, 5 P-47s hit Yanagawa and 96 Iwo Jima based P-51s hit targets (mainly airfields) at Kameyama, Kiyosu, Komaki, Okazaki, Suzuko, and Akenogahara; 22 air victories are claimed; 1 P-51 is lost. HQ 21st Fighter Group moves from Central Field to South Field on Iwo Jima.
PACIFIC: The Royal Navy's Task Force 37 under Vice Admiral Henry B. Rawlings, RN, and composed of a battleship, four aircraft carriers (HMS Formidable, HMS Indefatigable, HMS Implacable and HMS Victorious), eight light cruisers and 18 destroyers, joins the USN's Third Fleet.
CHINA THEATER (AAF, China Theater) Fourteenth Air Force: In China, 5 B-25s pound enemy truck convoys moving supplies through the Siang-Chiang Valley and S of Kweilin; 60+ P-51s, P-38s, and P-47s continue to hit river, road, and rail traffic, bridges, troops, supplies, and other targets at many points in French Indochina and S and E China.
INDIA-BURMA THEATER (AAF, India-Burma Theater) Major General Thomas J Hanley, Jr assumes command of AAF, India-Burma Theater.
JAPAN (FEAF): On Kyushu Island, Japan, B-24s, A-26s, B-25s, P-51s and P-47s from Okinawa and Ie Shima pound targets; P-51s hit several E coast targets, concentrating in the Kagoshima Bay area; 27 A-26s, 1 B-24, and 39 P-47s hit the airfield and bridge at Miyazaki; 33 B-24s bomb bridges at Nobeoka; 36 B-25s, a B-24 and an A-26 pound Sadohara bridge; 6 B-24s bomb harbor and town of Aburatsu; and 5 P-47s hit Yanagawa.
FORMOSA (FEAF): On Formosa, P-51s on a sweep attack communications targets, hitting a railroad station and a locomotive shed at Byoritsu and scoring a direct hit on bridge SW of Koryu.
NEI: B-24s bomb warehouses at Watampone on Celebes Island. On Luzon, P-51s and B-25s support ground forces in the Kiangan-Baguio sector and an area E of Manila.
WESTERN PACIFIC [Far East Air Force (FEAF)]: The 64th Troop Carrier Squadron, 403d Troop Carrier Group, moves from Biak to Dulag with C-47s.