1. Durand Line : Pakistan and Afghanistan. 2. Mc. Mohan Line : India(Arunachal Pradesh Region) and China. 3. Radcliff Line : India and Pakistan. 4. Line of Control : It divides Kashmir between India and Pakistan. 5. Hidden berg Line : Germany and Poland 6. Maginot Line : France and Germany 7. Older Neisse Line : Germany and Poland 8. Mannerheim Line : Russia and Finland border. 9. Siegfried Line : Germany and France. 10. 17th Parallel : North Vietnam and South Vietnam. 11. 24th Parallel : India and Pakistan. 12. 26th Parallel : Australia & South Africa. 13. 38th Parallel: North Korea and South Korea. 14. 49th Parallel : Canada and USA.