July and underwent repairs alongside Delta (AR-9). On her return to the coast of Vietnam, she rejoined TU 70.8.9 for a series of gunfire support missions in the I Corps zone of operations. Her guns helped the marines ashore complete Operation Bear Chain, an amphibious assault by Special Landing Force "Bravo" near Quang Tri City. On 21 July, she headed back to Subic Bay for a week of repairs and upkeep. She did not return to the Vietnamese coast for a month due to repairs to her evaporator system. However, on 20 August, she headed back to the combat zone where, on the 22d, she resumed gunfire support duty for troops in the II Corps zone. Relieved by Eaton (DD-510) on 26 August, she rejoined TF 77 in the Gulf of Tonkin and served as escort for the carriers until 3 September. She departed the Gulf of Tonkin late on the 3d and shaped a course for Okinawa, arriving there on the 7th. From there, she moved on to Yokosuka for a 10-day layover before getting underway for home on the 21st. Wedderburn reached San Diego on 6 October and began the normal post-deployment stand-down. In mid-November, she resumed normal operations in the southern California operating area. That routine continued until she began repairs at Long Beach on 19 April 1968. She returned to San Diego on 24 May and resumed normal operations out of her home port.Wedderburn embarked upon the final western Pacific deployment of her career on 30 September. Steaming in company with Hornet (CVS-12), she stopped at Oahu for nine days in mid-October and then continued her voyage to Yokosuka, where she arrived on the 27th. On the 30th, she accompanied Hornet out of Yokosuka, and together, they laid course for the Tonkin Gulf. They arrived in the gulf on 3 November; but, two days later, Wedderburn became an escort for Constellation (CVA-64) for two days. After that, she rejoined her old colleague, Hancock. On 17 November, a recurring sonar problem forced the destroyer to head for Subic Bay, where she remained until 9 December. She returned to duty in the Tonkin Gulf on 11 December but remained on station only until the 31st when steam leaks forced her back to Subic Bay. She completed repairs late in January 1969 and returned to the combat zone soon thereafter. The warship remained on station, dividing her time between