A nickname for England is Old Blighty. The term has been around since the British held India as a colony. Blighty is derived from an Indian word that means Britain- bilāyatī.
The soldiers slurred the word into Blighty. Kind of like the area of London known as Elephant and Castle which was a corruption of Eleanor of Castile’s name. She was the queen of Edward I.
The term became popular during WWI when men would hope for an “old Blighty” wound- one not bad enough to kill you, but bad enough to be sent back home to get well. A number of songs were written with the term in the lyrics.