The Cassin Young was launched on September 12, 1943 by Bethlehem Steel Corp., San Pedro California and commissioned on December 31, 1943 by Commander E. T. Schrieber. The ship has seen many battles throughout its history. The first was in April 1944 when it attacked Japanese strongholds, such as Truk Atoll in the Caroline islands. A month later, Cassin Young was supporting amphibious assault troops on Saipan, Tinian, and Guam. In August, she was reassigned to the carriers of Task Group 38.3. Comprised of 17 fast carriers, 6 battleships, 13 cruisers, 58 detroyers, and an aircraft strength of 1,100, she guarded this force as strikes were sent from their decks to targets on Palau, Mindanao, and Luzon until the beginning of October. Later that same month, the ship was involved in the Battle of Leyte Gulf. An enemy bomber hit the carrier Princeton. Cassin Young rescued sailors from the carrier as it was sinking. The next day, she escorted carriers that sunk four Japanese ships in what eventually became known as the Battle of Cape Engano. After some upgrades at her port in Ulithi Atoll, the ship then supported the invasion of Iwo Jima by screening for other ships during the initial assault. It also gave support in the bombardment of Parece Vela.
In March and April of 1945, Cassin Young screened heavy ships in the pre invasion bombardment of Okinawa. Following this action, her crew moved closer to shore to provide support to the underwater demolition teams preparing the beaches. During the invasion of Okinawa on April 1, it served as a radar picket station and gave fire support to soldiers on land. It was during these months that she also suffered two Kamikaze hits. On April 12, 1945, the ship was hit in its foremast by an attacking plane. Its bomb exploded above the ship, killing one sailor and injuring 59 others. The second plane came on July 30 in Okinawa. The crew were escorting destroyer USS Pritchett to a sunken US ship that was hit the night before. In the early morning, an old biplane carrying a 250 pound bomb careened into the Cassin Young, 30 yards off her starboard beam. The explosion killed 22 crewman and injured 45. Despite the casualties taken, USS Cassin Young was able to take out Japanese shore batteries and airplanes to protect the landing craft. Because of this heroic action, the ship was given the Navy Unit Commendation by the then Secretary of the Navy, James Forrestal.
After Okinawa, Cassin Young sailed to San Pedro, California where she was decommissioned and placed in reserve. Recommissioned in September 1951, she moved to a new home port in Newport, Rhode Island. Between then and 1960, the crew participated in training exercises and patrolled off of Korea. On April 29 1960 she was again decommissioned at Norfolk Naval Shipyard and placed on reserve. For its valiant efforts in World War 2, Cassin Young received four battle stars.