Nice guide to understanding the UK - in case you get confused by this one.

Two Highlights

English – 1] The language spoken by the British (but as in Scotland and Wales, not the only language). 2] The people who live in England. Someone from Scotland is not English. Someone from Wales is not English. Only someone from England is English.
Blighty – An older term for ‘Britain’ that evokes misty-eyed golden images of Britain. ‘Dear Old Blighty.’ Originated in India.