On 29 April, Nimitz issued orders that sent his four carriers and their supporting warships towards the Coral Sea. Task Force 17 (TF 17), commanded by Rear Admiral Fletcher and consisting of the carrier , escorted by three cruisers and four destroyers and supported by a replenishment group of two oilers and two destroyers, was already in the South Pacific, having departed Tongatabu on 27 April en route to the Coral Sea. TF 11, commanded by Rear Admiral Aubrey Fitch and consisting of the carrier with two cruisers and five destroyers, was between Fiji and New Caledonia. TF 16, commanded by Vice Admiral William F. Halsey and including the carriers and , had just returned to Pearl Harbor from the Doolittle Raid in the central Pacific. TF 16 immediately departed but would not reach the South Pacific in time to participate in the battle. Nimitz placed Fletcher in command of Allied naval forces in the South Pacific area until Halsey arrived with TF 16. Although the Coral Sea area was under MacArthur's command, Fletcher and Halsey were directed to continue to report to Nimitz while in the Coral Sea area, not to MacArthur.