Fifth Air Force, Australia and South West Pacific
A total of four Bombardment Groups operated the B-24 Liberator with the Fifth Air Force during its campaign in the south west Pacific.
The 90th Bombardment Group was the first Fifth Air Force unit to gain the B-24, operating it from bases in Australia from November 1942-February 1943, from New Guinea from February 1943 to August 1944 and then from Biak until January 1945. During this period the unit supported the campaigns on New Guinea, as well as attacking targets on Palau and in the southern Philippines. In January 1945 the group moved to Mindoro, from where it attacked targets on the Asian mainland, before finally moving to Ie Shima in August 1945 in preparation for the attack on Japan.
The 43rd Bombardment Group gained its B-24s between May and September 1943, while it was based on New Guinea. From there it moved to Owi, in the Schouten Islands (July 1944), then to the Philippines (November 1944) and finally to Ie Shima in July 1945. It attacked targets on New Guinea and the southern Philippines while based on New Guinea. From the Philippines the group was used to attack Japanese shipping off the coast of the Asian mainland, as well as targets in China and on Formosa. Finally from July 1945 it attacked targets in Japan, the Inland Sea and the Sea of Japan.
The 22nd Bombardment Group gained its B-24s in February 1944. From then until September it was used to attack targets on Borneo, before helping to support the invasion of the Philippines. The group moved to Leyte in November 1944, from where it supported the campaign on Luzon, as well as attacking targets on Borneo and in China. At the very end of the war the group had moved to Okinawa, in preparation for the invasion of Japan.
The 380th Bombardment Group was assigned to the Fifth Air Force from the spring of 1943, but was attached to the Royal Australian Air Force from then until January 1945. During that period it trained Australian crews to fly the B-24, and carried out attacks on Japanese targets in the Dutch East Indies, the Bismarck Archipelago, on Borneo and on New Guinea. In February 1945 the group rejoined the Fifth Air Force on Mindoro, from where it took part in the campaign on Luzon, as well as attacking targets on Formosa, Borneo and in French Indochina. Finally in August 1945 the group moved to Okinawa, from where it flew missions over Japan.
Seventh Air Force
A total of five B-24 groups served with the Seventh Air Force during the Second World War. Two of those units, the 90th and 307th Bombardment Groups served with that air force while it was based on Hawaii, and were then transferred to the Fifth and Thirteenth Air Forces respectively to enter combat.
The remaining three groups, the 11th, 30th and 494th, took part in the Seventh Air Force’s campaign in the central and western Pacific, which began in mid 1943.
The 494th Bombardment Group took a different route across the Pacific. At the end of 1944 it moved to Palau, before entering combat on 3 November with an attack on the Japanese airfields on Yap and Koror. The group spend the rest of the war attacking bypassed Japanese island bases, as well as taking part in the return to the Philippines. In June 1945 the group was the first B-24 unit to move to Okinawa and began to operate its B-24s against Kyushu (the first B-24 unit to operate against the Home Islands). At the end of the war the B-24s of the Seventh Air Force were amongst the aircraft used to fly mercy missions to the Allied prisoners of war being held in Japan.
Tenth Air Force, India
Only one group operated the B-24 with the Tenth Air Force, based in India. The 7th Bombardment Group had been through a number of changes of role and equipment since reaching India, flying a mix of B-17 Flying Fortresses, LB-30s and B-25 Mitchells. This changed when Brigadier-General Earl L. Naiden took over control of the Tenth, turning the 7th back into a heavy bombardment unit, equipped with the B-24 Liberator. Liberator operations began late in 1942, and continued until the end of the war. The 7th Bombardment Group operated over Burma as well as hitting Japanese shipping and targets in Thailand and China.
Eleventh Air Force, Alaska
The Liberator formed part of the equipment of the 28th Composite Group, based in Alaska with the Eleventh Air Force. The group had been assigned to Alaska early in 1941, but did not gain its first Liberators until after the Japanese attack on Pearl Harbor. At that point the USAAF took over a number of aircraft designated for the RAF, under the designation LB-30, allocating a number of them to the 28th Bombardment Group. The group was also given a number of American production B-24s. The campaign over the Aleutians was fought in some of the most difficult conditions of the entire Second World War, with the weather causing more aircraft losses than the Japanese! The 29th Bombardment Group took part in both of the major Alaskan campaigns, the American recovery of the Aleutian Islands, and then from mid-1943 the bombing campaign over the Japanese Kurile Islands. Although the Americans never had any intention of invading Japan from this direction, these bombing raids helped to convince the Japanese that this was possible, and so a larger than necessary garrison was maintained on those islands.
Thirteenth Air Force
Two groups operated the B-24 with the Thirteenth Air Force as it fought its way from the Solomons back to the Philippines - the 307th Bombardment Group and the 5th Bombardment Group. First to arrive was the 307th, in February 1943. The 307th began operations from Henderson Field, working alongside Navy Liberators and carrying out attacks on Japanese shipping around Guadalcanal and Bougainville.
The 5th BG arrived in August 1943, and at first operated from Guadalcanal, before moving on to Munda (1943), New Georgia, Momote, Los Negros, Noemfoor, Morotai (1944) and finally Samar in the Philippines (1945). The 307th followed a very similar path, although it didn't reach the Philippines until September 1945, after spending nearly a year based at Morotai.
The Thirteenth Air Force was also the home of the 868th Bombardment Squadron (the Snoopers). Formed in August 1943 and not part of any Bombardment Group (although it was initially designated the 394th BS, 5th BG) this unit specialised on long range low-level radar aided attacked, and operated over vast distances across the south-west Pacific.