She was originally built as a merchant vessel but later acquired and converted by the Navy, and assigned to the United States Department of Defense's Military Sealift Command.
After some time spent in commercial service she was lengthened by Hyundai Heavy Industries in 1984, and later went on to be acquired by the US Navy under a long term charter.
She was converted to a US Navy Vehicle Roll-on/Roll-off Ship at Newport News Shipbuilding and Drydock Company in Newport News, Virginia, in a contract dated 23 May 1997 and on completion was assigned to the Military Sealift Command under the name USNS Gilliland, after Medal of Honor recipient Corporal Charles L. Gilliland.
[4] If activated, Charles L. Gilliland will report to the Military Sealift Command for operational control.
Charles L. Gilliland is maintained in a reduced operating status and the crew is provided by commercial companies under contract to MARAD.