STUFT is a nautical acronym for Ship Taken Up From Trade, and applies to civilian ships requisitioned for government use.

The Falklands conflict of 1982 saw a diversity of Ships Taken Up From Trade
from Tankers with potable water (see British logistics in the Falklands War

British logistics in the Falklands War

According to Admiral Sandy Woodward, who commanded the British fleet during the Falklands War, the British Army, Royal Air Force, the Ministry of Defence and the Secretary of State for Defence, as well as the United States Navy, all “initially suspected the operation was doomed.” The logistical...

)
and fuels, Freighters carrying food and munitions and luxury ocean going liners converted to carry troops. Without this lifeline of Merchant ships, Operation Corporate

Operation Corporate

Operation Corporate was the codename given to the 1982 British military involvement in the Falkland Islands during the Falklands War. The commander of task force operations was Admiral Sir John Fieldhouse. Operations lasted from 1 April 1982 to 20 June 1982....

could never have taken place.