Was there ever a hard border in Ireland?

Related questions

1. Is Northern Ireland poorer than Ireland?
2. Are the Irish a race?
3. Do I need a green card to drive in Ireland?
4. How many billionaires are in Ireland?
5. Is Scottish and Irish DNA the same?
6. How is Ireland divided?
7. Is Belfast better than Dublin?
8. What is a typical breakfast in Ireland?
9. Has Ireland paid back the bailout money?
10. What beer do Irish people drink?

Tags

1. #irish
2. #border
3. #representatives
4. #stated
5. #nature
6. #government
7. #sensitive
8. #ireland