Cogswell arrived at Pearl Harbor9 December 1943 for training, and there joined the screen of mighty carrier Task Force 58 for the Marshall Islands operation. At sea on this duty from 16 January to 12 February 1944, when she put into Majuro, Cogswell also bombarded Gugewe Island. She continued her screening as the carriers launched raids on Truk on 16–17 February and on bases in the Marianas Islands on 21–22 February, then sailed from Majuro to Espiritu Santo to screen carriers providing air cover for the seizure of Emirau Island from 20–25 March, and raiding the Palaus, Yap, and Woleai from 30 March to 1 April. The destroyer returned to Majuro on 6 April 1944, and a week later joined the sortie for the Hollandia landings of 21–24 April, and air raids on Truk, Satawan, and Ponape at the close of the month. Replenishment at Majuro from 4 May to 6 June preceded Cogswells assignment to screen carriers during the landings in the Marianas. On 16 June, Cogswell was temporarily detached to join in the bombardment of Guam, rejoining her force to guard it during the momentous air Battle of the Philippine Sea on 19–20 June. She continued her screening in the raids on Palau, Ulithi, Yap, Iwo Jima, and Chichi Jima from 25 July to 5 August, during the last of which she joined in the surface gunfire which sank several ships of a Japanese convoy earlier badly mauled by carrier aircraft. From 11–30 August, she replenished at Eniwetok. Next at sea from 30 August to 27 September 1944, Cogswell sailed in the carrier screen as strikes were hurled at targets in the Palaus and Philippines during the invasion of Peleliu. On 6 October, she sailed from Ulithi for the air strikes on Okinawa and Formosa in preparation for the Leyte landings, and fired protective antiaircraft cover for her force during the Formosa air battle of 12–14 October. After guarding the retirement toward safety of and, she rejoined her force for air strikes on Luzon and the Visayans, and screened them during the Battle of Surigao Strait, one phase of the decisive Battle of Leyte Gulf. She returned to Ulithi on 30 October, where future astronaut Alan Shepard joined the ship as a gunnery officer, but put to sea 2 days later to return to the Philippines. After was damaged by a submarine's torpedo, Cogswell guarded her passage to the safety of Ulithi, then returned to screen air strikes on Luzon, the landings on Mindoro, and the air attacks on Formosa and the China coast which neutralized Japanese bases in preparation for and during the Lingayen invasion. Cogswell screened, hit during an air attack, into Ulithi 24 January 1945, and sailed on to the west coast for overhaul. After sailing across the Pacific guarding convoys, Cogswell arrived off Okinawa on 27 May 1945 for dangerous and demanding duty as radar picket until 26 June. Three days later she rejoined the carrier Task Force 38 for the final series of raids against the Japanese home islands until the close of the war. Arriving in Sagami Wan on 27 August, Cogswell pushed on into Tokyo Bay on 2 September for the surrender ceremonies. Cogswell was given the honor of being the first USN ship to enter Tokyo Bay before the surrender. She supported the occupation in the Far East through operations in Japanese waters and escort duty to Korean ports until 5 December, when she sailed from Yokosuka for San Diego, Boston, and Charleston, South Carolina, where she was decommissioned and placed in reserve 30 April 1946.
Post World War II
Recommissioned on 7 January 1951, Cogswell served with the Atlantic Fleet with Newport, Rhode Island, as her home port. Between 26 August 1952 and February 1953, she cruised to ports of northern Europe while taking part in NATO operations, sailing on for duty with the 6th Fleet in the Mediterranean. She again cleared Newport on 10 August 1953, bound for the Panama Canal and duty off Korea and patrolling in the Taiwan Straits. Continuing westward, she sailed through the Suez Canal, and completed her cruise around the world on 10 March 1954. On 15 December 1954, Cogswell arrived in San Diego to join the Pacific Fleet. From that time through 1963, she has alternated tours of duty with the 7th Fleet in the Far East with coastwise operations. On her 1955 cruise, she took part in the evacuation of the Tachen Islands. She returned to the Far East in 1956 and each succeeding year through 1960. In 1957, Cogswell visited Australia and the Fiji Islands, and in 1958, she took part in nuclear weapons tests at Johnston Island, and patrolled in the Taiwan Straits when Chinese Communists resumed shelling of the offshore islands and threatened their assault.
Cogswell made four deployments to Southeast Asia during the war in Vietnam. Following her last deployment, Cogswell was decommissioned on 1 October 1969 and given to the Turkish Navy, where she served as TCG İzmit until 1981. She was scrapped after her service in the Turkish Navy.
Honors
Cogswell received nine battle stars for World War II service.
