On 17 May, the ocean escort set out for Subic Bay in company with "Constellation". The two warships visited Subic Bay from 19 to 22 May and then got underway for Singapore. After a four-day port call at Singapore, they returned to sea on 30 May on their way back to the waters surrounding Vietnam. "Albert David" parted company with "Constellation" on 2 June to render gunfire support to troops in I and II Corps in South Vietnam. At the end of 10 days on the gunline, she formed up with "Constellation" again on 12 June. The two warships stopped at Subic Bay on 15 June and returned to sea almost immediately. On 20 June, they arrived in Yokosuka for a two-day port call before beginning the voyage across the Pacific. "Albert David" and "Constellation" cleared Yokosuka on 22 June bound for the United States. "Albert David" escorted the carrier until 30 June when she received orders to proceed independently. The ocean escort entered Long Beach the following morning.