Guadalcanal. In July, Lang and four other destroyers sailed for Kula Gulf escorting six APDs to the New Georgia landings. Early on the 18th, the American force sighted and attacked three Japanese destroyers forcing them to retire behind smokescreens. The ships completed their mission and sailed for Purvis Bay, located in the Nggela Islands, part of the Solomon Islands from which Lang and two other destroyers escorted five LCIs to the landings at Onaiavisi, New Georgia, on 31 July, where during an enemy air attack Lang claimed an aircraft shot down. Lang''', in company with five other destroyers, was tasked to intercept enemy forces in Vella Gulf, part of the “Tokyo Express” route. On the nights of 6 August and 7 August the task group sank three Japanese destroyers, Kawakaze, Arashi and Hagikaze, which had been attempting to reinforce Kolombangara. Two nights later they drove off groups of Japanese troop transports. After 3 months of escort duty. Lang joined TF 50 for the invasion of the Gilberts 23 to 30 November, bombarded Nauru on 9 December and early in the new year bombarded Roi, Namur. 1944 Then she joined TF 58 for the occupation of Kwajalein, returning to escort duties 15 March 1944. During the summer she operated with TF 58 during the Marianas campaign, screening the fast carrier force, returning to Tulagi on 17 August after the victory in the Marianas.Lang next sailed to Wewak, New Guinea, 31 August to lay a minefield and shelled shore positions. She then escorted two reinforcement convoys bound for Morotai from 16 September to 3 October through heavy enemy air attacks. On 8 October she took the torpedoed Shelton (DE-407) in tow but she capsized and sank.Lang departed Hollandia 10 October for the Leyte Gulf operation. Though she came under kamikaze attacks, she suffered no damage and claimed an enemy aircraft shot down. She departed the battle area for Manus on 31 October and on Christmas Day sailed with TF 78 for the Lingayen Gulf landings, where she was attacked by kamikazes and claimed another aircraft destroyed. 1945 She returned to Leyte Gulf on 16 January 1945 to escort a resupply echelon to Lingayen, patrolled the entrance to Lingayen until 28 January, then sailed to train in the Solomons for the Okinawa assault. Departing Ulithi 27 March as flagship for ComDesDiv 4, Lang screened the transports of TF 53 to Okinawa. Under air