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Important International Boundary Lines in the World

International Boundary Lines in the World: Check the important international Boundary in the world that define countries' territories and cultures, shaping how our world is organized politically and culturally.
authorImageParul Rishi13 Apr, 2024
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International Boundary Lines in the World

International Boundary Lines in the World: International boundaries represent the geographic demarcations of political or legal jurisdictions, delineating areas of sovereignty among countries, customs territories, and sovereign states. The establishment of these borders is known as boundary delimitation. While certain borders, like those within free movement zones such as the European Union, may have minimal or no physical barriers, others, such as the India-Pakistan or North Korea-South Korea borders, are heavily guarded with restricted access points. Understanding international boundary lines is a significant component of the Geography Syllabus for the SSC exam.

International Boundary Lines in the World

International boundary lines are the official divisions between countries, marking where one nation's territory ends and another's begins. They play a crucial role in defining sovereignty, legal jurisdictions, and political relations between nations. These boundaries vary in their nature, from heavily guarded borders to open crossings, and can be demarcated by physical features like rivers or mountains, or by man-made markers such as fences or walls. International boundary lines are essential for maintaining peace, security, and cooperation among nations on a global scale.

Important Boundary Lines of India and the World List

Important Boundary Lines of India and the World List is as follows:
Important Boundary Lines of India and the World List
Name of Line/Boundary Between Features/Description
17th Parallel South Vietnam and North Vietnam Divided erstwhile North and South Vietnam based on the 1954 Geneva Accords. Became irrelevant after Vietnam’s unification.
20th Parallel Libya and Sudan Marks the border between Sudan and Libya.
22nd Parallel Egypt and Sudan The 22nd latitude north marks a major portion of the Sudan-Egypt border.
25th Parallel Mauritania and Mali Marks the northernmost section of the Mali-Mauritania border.
31st Parallel Iran and Iraq / Louisiana and Mississippi, USA Marks the border between Iraq and Iran and also between the US states of Louisiana and Mississippi.
38th Parallel South Korea and North Korea Demarcates the central part of the Demilitarized Zone between North and South Korea.
49th Parallel The USA and Canada Forms the international border between the northern USA (excluding Alaska) and Canada.
Durand Line Pakistan and Afghanistan Delimited by Sir Mortimer Durand in 1893 but not recognized by present-day Afghanistan.
Hindenburg Line Poland and Germany A defensive line in French territory during World War I, rendered irrelevant by the Treaty of Versailles in 1919.
McMahon Line China and India De facto border between India and China, although China disputes its legal status.
Maginot Line Germany and France A defensive line on the French border towards Germany before World War II, rendered obsolete by the German invasion.
Mannerheim Line Russia and Finland A defensive line against the Soviet Union during World War II.
Oder-Neisse Line Poland and Germany Demarcates the Polish-German border according to the Potsdam Conference, recognized by unified Germany in 1990.
Radcliffe Line India and Pakistan Demarcated for the Partition of India and the formation of East and West Pakistan, including present-day India, Bangladesh, and Pakistan.
Siegfried Line France and Germany An extension of the Hindenburg defensive line on the western front of World War I.
Blue Line Lebanon and Israel A border demarcation between Lebanon and Israel established by the United Nations.
Green Line / UN Buffer Zone The Republic of Cyprus and Turkish Cyprus A demilitarized zone patrolled by the United Nations Peacekeeping Force in Cyprus (UNFICYP) established after the ceasefire in 1974.
Important Boundary Lines of India and the World Details Let's look into the significance of some key boundary lines that India shares with its neighboring countries:
  1. Radcliffe Line: The Radcliffe Line marks the Indo-Pakistan border, established on August 17, 1947. It extends from Gujarat to the border of Jammu and Kashmir. In this region, the Line of Control (LOC) is under military control and was renamed after the Simla Agreement of July 3, 1972.
  2. McMahon Line: Named after Sir Henry McMahon, the McMahon Line serves as the boundary between India and China. It stretches from the eastern border of Bhutan to the Himalayan crest, following the bend in the Brahmaputra River. Historically, it delineated the frontier between Tibet and Assam during British India.
  3. Durand Line: The Durand Line, demarcated by Sir Mortimer Durand in 1896, separates India and Afghanistan. Originally dividing British India and Afghanistan, Pakistan inherited this line after partition. It spans approximately 2640 kilometers, with a small portion shared between Afghanistan and the Indian state of Jammu and Kashmir.
  4. Line of Actual Control (LAC): The Line of Actual Control serves as the demarcation between India and China, separating India-controlled territory from China-controlled territory in the former princely state of Jammu and Kashmir. Following China's 1962 attack and subsequent ceasefire, the LAC was established in 1963, though it's not internationally recognized as a formal boundary.

Length of the Border Countries

India shares its land borders with seven countries: Bhutan, Bangladesh, China, Afghanistan, Myanmar, Nepal, and Pakistan. Additionally, it has maritime borders with Sri Lanka, Maldives, and Indonesia. The total length of India's land border is 15,106.7 kilometers, with a coastline spanning 7,516.6 kilometers, inclusive of island territories. Here's a breakdown of the lengths of India's land borders with its neighboring countries:
  • Bangladesh: 4,096.7 km
  • China: 3,488 km
  • Pakistan: 3,323 km
  • Nepal: 1,751 km
  • Myanmar: 1,643 km
  • Bhutan: 699 km
  • Afghanistan: 106 km
These boundaries are important in defining India's territorial integrity and play a crucial role in its geopolitical landscape. To succeed in upcoming exams, candidates should consider exploring PW SSC Books We provide high-quality content at an affordable price, including sample papers, mock tests, guidance sessions, and more to ensure aspirants secure their selection. Also, enroll today on SSC Online Coaching to turn your dreams into reality.
Other Related Links
Tiger Reserves in India National Parks in India
Biosphere Reserves in India Elephant Reserves in India

International Boundary Lines in the World FAQs

Which line separates India and China?

McMahon Line separates India and China.

What is the line between India and Bangladesh called?

The line between India and Bangladesh is called the Radcliffe Line.

Which line is between India and Afghanistan?

The line between India and Afghanistan is known as the Durand Line.
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