30th Bombardment Group (H)
The 27 BS squadron took part in the island hopping campaign, making three hops itself – to Abemama Airfield in the Gilbert Islands at the start of 1944, to Kwajalein Airfield in March 1944 and to East Field, Saipan in the Mariana Islands in August 1944. During this period the squadron had attacked targets in the Marshall, Gilbert and Truk Islands, as well attacking Wake Island, Guam and Saipan. Once on Saipan the squadron attacked targets in the Bonin and Volcano Islands in support of the invasion of Iwo Jima.
In March 1945 the squadron (although not all of its aircraft or crews) returned to Hawaii, from where it carried out a mix of patrol and training duties. Inactivated in Hawaii on 20 March 1946.