- Durand Line – between Pakistan and Afghanistan
- Macmohan line – between India and China
- Maginot line – between France and Germany
- Radcliff Line – between India and Pakistan
- 17th Parallel – between South Vietnam and North Vietnam
- 31st Parallel – between Iran and Iraq
- 49th Parallel – between USA and Canada
- Line of Control – between India and Pakistan
- Line of Actual Control – between India and China
- Actual Ground Position Line (AGPL) – India and Pakistan (Siachen region)
