USS Longshaw

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).

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.

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.

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.

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.

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.

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.