A 23-year-old soldier has died and another has been seriously injured in a road accident in Iraq.
Rifleman Windsor's family and fiancee have requested privacy
Rifleman Vincent Calvin Windsor, from Oxfordshire, was killed when his vehicle crashed in Al Amarah, southern Iraq, on Wednesday.
Defence chiefs only released details on Friday after a request for time from Mr Windsor's family. His injured colleague has not yet been named.
The accident was not being connected to any hostile attack, said the MoD.
The death toll among British soldiers is now 57 since the war began - 24 of whom have died since the hostilities were declared over on 1 May 2003.
The latest incident follows a car accident in Baghdad on New Year's Day, which killed two SAS soldiers.
Major James Stenner, of the Welsh Guards, and Sergeant Norman Patterson, from the Cheshire Regiment, died when their vehicle struck a concrete barrier.
Rifleman Windsor was a member of 2nd Battalion The Royal Green Jackets and attached to 1st Battalion The Light Infantry in southern Iraq.
His Commanding Officer, Lieutenant Colonel Harry Emck, said Rifleman Windsor was "enormously popular and likeable" and had a "great sense of humour".
"He will be sadly missed by all his colleagues and comrades," he said.
The soldier joined A Company of the Royal Green Jackets in 1999 and spent time in Germany, Bosnia and Poland.
He joined Battalion in September 2002, so he could remain close to his German fiancee, Lt Col Emck said.
He was on a second tour with them in Iraq when he was killed.
The MoD would not provide any further details about the accident, but no other vehicles were believed to be involved.
The injured soldier is undergoing treatment but his injuries were not thought to be life threatening, said the MoD.