Why did Britain keep Northern Ireland?

Related questions

1. Is Ireland one of the richest countries?
2. How long has the IRA been fighting?
3. Why did Ireland want home rule?
4. Is Northern Ireland mostly Catholic or Protestant?
5. What started the troubles in Ireland?
6. What was Home Rule Ireland?
7. Why did the Home Rule Bill 1886 fail?
8. How many signed the Ulster Covenant?
9. What do the SDLP stand for?
10. Is Ireland wealthy or poor?

Tags

1. #within
2. #mostly
3. #british
4. #irish
5. #however
6. #independent
7. #southern
8. #population
9. #united
10. #significant
11. #wanted
12. #minority
13. #majority
14. #would
15. #northern
16. #which
17. #catholics
18. #state
19. #ireland
20. #unlike
21. #nationalists
22. #remain
23. #unionists
24. #become
25. #kingdom