New Britain

From Tardis Wiki, the free Doctor Who reference

New Britain was the name given to Great Britain in at least two periods of its history. In the early 21st century, General Mariah Learman seized power and renamed the country New Britain. (AUDIO: The Time of the Daleks) As of 3550, the sentient computer Mar-Kom ruled New Britain from New London. (COMIC: The Eternal Present)