Shakedown; 1943 Longshaw was launched, commissioned, and put to sea (15 December 1943) for tests, training, and shakedown off the west coast. She returned to port (26 January 1944) for post-shakedown availability (repairs).
Raids, Hollandia Operation; February–May 1944 Source: Following shakedown off the west coast,
Longshaw sailed from
San Francisco 18 February 1944, via
Pearl Harbor, for the
Marshalls arriving
Kwajalein 4 March. Assigned to the
5th Fleet, the destroyer got underway for
Majuro 15 March, where she then conducted a patrol off
Wotje and
Maloelap Islands until the 21st. The ship stood out from Majuro the next day, screening the replenishment group for the
Fast Carrier Task Force (Task Force 38/58) during strikes on
Palau,
Yap,
Ulithi, and
Woleai, 30 March and 1 April, returning to Majuro on the 6th. Six days later, she sailed again, steaming via
Manus for
Hollandia, escorting the same task group as planes from the flattops pounded the
New Guinea coast to support landings by General
Douglas MacArthur's troops.
Longshaw return to Pearl Harbor 9 May for minor repairs and training.
Marianas Operation, Tinian; May–August 1944 Getting underway for the
Marianas on 30 May, escorting part of the northern attack force, the destroyer arrived off
Saipan 15 June. For the next two months, except for a brief voyage to
Eniwetok, she remained there, screening the
escort carriers providing air support for the invasion and also operating as a rescue ship for downed aviators. Sailing to Eniwetok on 22 August,
Longshaw departed on the 29th to guard the carriers of Task Group 38.3 (TG 38.3) during strikes against targets on Palau,
Mindanao, and
Luzon in support of the assault on the
Palaus, the steppingstone to the
Philippines.
Western Caroline Islands Operation; September–October 1944 On 9 September, in company with other ships of her task group, the destroyer attacked a convoy of Japanese
luggers off Mindanao, herself destroying three small coastal vessels. She continued to support carrier operations against Japanese in the Philippines until proceeding to Ulithi on 2 October.
Leyte Operation; October–December 1944 Longshaw sortied with TG 38.3, 6 October for intensified airstrikes in preparation for the
Philippines invasion. Planes from the carriers hit airfields on
Okinawa, Luzon, and
Formosa, 10 to 13 October.
Longshaw, in the screen, shot down one Japanese
torpedo bomber during the furious Formosa air battle on the 12th. The fast carriers continued their operations in support of the
invasion of Leyte, hitting the Philippines airfields steadily until the night of 24 October, when the mighty armada turned northward to engage the Japanese northern force the next day in the
Battle off Cape Engaño. In a series of crushing airstrikes, American naval aircraft sank the remnants of Japan's carrier force. Based at Ulithi,
Longshaw operated with TG 38.3 through the end of the year, screening the carriers in airstrikes at enemy bases on Okinawa, Formosa, and Luzon, helping to clear the way for the invasion of the latter island in January.
Luzon Operation; January 1945 On the night of 9–10 January 1945, the destroyer accompanied the fast carriers through
Bashi Channel between the Philippines and Formosa, entering the
South China Sea. For the next 10 days, TF 38 operated unchecked, launching attacks at Japanese installations in
French Indochina, Formosa, and the
China coast, including
Hong Kong and
Hainan. After returning through
Balintang Channel, the flattops pounded Okinawa once more, 22 January, before retiring to Ulithi on the 26th.
Iwo Jima, Okinawa; February–May 1945 Longshaw departed Ulithi 10 February with a night-fighter direction team on board. Sailing with the fast carrier force, she served as a fighter-direction and radar picket vessel during the airstrikes on
Tokyo, 17 to 18 February; and, for the remainder of the month, escorted TG 58.5, the night carrier group in actions off
Iwo Jima. Returning to Ulithi 12 March, the destroyer joined
Task Force 54 (TF 54), which stood out for Okinawa on the 21st, escorting the support and bombardment unit for the invasion. Arriving 25 March, the ship shelled enemy targets ashore in support of American troops. Serving in this capacity throughout April and into May, the ship's crew performed magnificently. On call for naval gunfire support day or night,
Longshaw remained continuously on station supplying her much needed firepower, despite steady attacks by Japanese suicide planes. ==Fate==