[[Image:USS Achernar.jpg|right|350px|USS Achernar]]
The last week in May found Achernar in [[Plymouth]], [[England]]. On 1 June, she was designated the 1st Army's headquarters ship. On 6 June, she steamed across the [[English Channel]] and, at 1609, anchored in her preassigned position in Baie de la Seine, France. For the next few days, she acted as a nerve center for troops fighting for a foothold in [[France]]. On 11 June, the 1st Army's headquarters disembarked; and, at 1148, Achernar got underway for England. After a three-day respite in Plymouth, the ship moved to Roseneath, [[Scotland]], to take on the cargo and personnel of two construction battalions. On 19 June, she returned to Plymouth to onload materials to repair damaged assault craft and, on 22 June, got underway for the assault area in France. While on station, she underwent several enemy air attacks. The cargo ship again left the French coast on 29 June to return to England and arrived in Plymouth on 1 July. On 5 July, the ship was ordered to sail as a part of Task Group (TG) 120.6, which was bound for the Mediterranean to support [[Operation Anvil|the invasion of southern France]]. The ship entered the harbor at [[Oran]], [[Algeria]], on 10 July; but, six days later, sailed to [[Naples]]. After loading operations there, she switched to an anchorage at Castellamare, Italy, on 2 August. Here, she embarked personnel of the 36th Division and proceeded to sea on the 13th for the assault in southern France. On the morning of 15 August, her crew commenced discharging her cargo and sending it to the beaches. The next day, after finishing the delivery of cargo, she received casualties on board and embarked 13 [[German]] prisoners of war before getting underway at 2100 to return to Naples.
For the next two months, Achernar continued making trips from Naples and Oran to points along the southern coast of France. On 25 October, she sailed from Oran westward through the Strait of Gibraltar towards the United States. She arrived at Hampton Roads on 8 November and underwent repairs and overhaul at the Norfolk Navy Yard. On 7 December, Achernar got underway for a brief period of trials and exercises in [[Chesapeake Bay]]. The ship returned to Norfolk on 11 December, took on cargo, and got underway on 18 December. She transited the [[Panama Canal]] on Christmas Day 1944 and arrived at [[Pearl Harbor]] on 10 January 1945.