Its on - shore headquarters in Pearl Harbor , Hawaii was established on 15 June 1944 .
The Third Fleet was originally formed during World War II on 15 March 1943 under the command of Admiral William F. Halsey .
Third Fleet 's on - shore headquarters in Pearl Harbor , Hawaii was established on 15 June 1944 .
The Third Fleet was originally formed during World War II on 15 March 1943 under the command of Admiral William F. Halsey .