| Name of Lines/Boundaries |
Between |
Features/ Description |
| 17th Parallel |
North Vietnam and South Vietnam |
- It is a circle of latitude 17 degrees north of the equator.
- It divided the erstwhile North and South Vietnam as demarcated by 1954 Geneva Accords.
- The 17th parallel became irrelevant after the unification of Vietnam in 1976.
|
| 20th Parallel |
Sudan and Libya |
- It is located 20 degrees to the north to the equator.
- It marks the border between Sudan and Libya.
|
| 22nd Parallel |
Sudan and Egypt |
- The main part of Sudan and Egypt border.
|
| 25th Parallel |
Mali and Mauritania |
- It is the northernmost section of the Mauritania and Mali border.
|
| 31st Parallel |
Iraq and Iran |
- It is a part of Iran-Iraq border.
- The 31st parallel defines Mississippi and Louisiana in the United States of America.
|
| 38th Parallel |
South Korea and North Korea |
- It forms the border between North and South Korea prior to the Korean War.
|
| 49th Parallel |
Canada and USA |
- It is located 49 degrees north of the equator.
- According to the Anglo-American Convention of 1818 and Oregon Treaty of 1846, it is the international boundary between USA and Canada.
|
| Durand Line |
Afghanistan and Pakistan |
- This line was drawn up in 1893 by Sir Mortimer Durand in agreement with the Amir of Kabul.
- Afghanistan does not recognize the Durand line.
|
| Hindenburg Line |
Poland and Germany |
- The Germans went past this line during World War I in 1917.
- It was built as the western front in World War I
|
| MacMahon Line |
India and China |
- It was drawn by Sir Henry McMahon.
- China does not recognize this line and violated it in 1962.
|
| Maginot Line |
France and Germany (from French side) |
- It is a 320 km line of fortification that was built by France along its border with Germany before World War II
|
| Mannerheim Line |
Russia and Finland |
- It was a defensive fortification built by Finland to defend itself against the Soviet Union.
|
| Oder-Neisse Line |
Germany and Poland |
- It runs along the rivers Oder and Neisse.
- The Poland Conference in August 1945 after the World War II led to its adoption.
|
| Radcliffe Line |
India and Pakistan |
- It became the international border between India and Pakistan marking partition of India.
- It also included the present Bangladesh.
|
| Siegfried Line /West wall |
Germany and France (from German side) |
- It was built by Germany as extension of Hindenburg line
|
