International Boundaries & Border Lines
International boundaries represent sovereign territorial limits established through bilateral treaties, armistice agreements, and natural geographic markers. Famous historical demarcations include the Radcliffe Line, established by Sir Cyril Radcliffe in 1947 to partition British India into India and Pakistan, and the Durand Line, drawn in 1893 between British India and Afghanistan. The McMahon Line delineates the border between India and China along the Eastern Himalayas, agreed upon at the 1914 Simla Convention. In East Asia, the 38th Parallel north originally divided the Korean Peninsula prior to the 1953 Korean Armistice Agreement, which created the Military Demarcation Line. The 49th Parallel north serves as the longest undefended international border, separating Canada and the United States.
Key Concepts & Examination Highlights
- The 49th Parallel north forms the longest undefended international land border, established between the US and British North America by the Treaty of 1818.
- The Radcliffe Line was published on August 17, 1947, defining the borders separating India from West Pakistan and East Pakistan.
- The Durand Line was established via an 1893 agreement between Sir Mortimer Durand of British India and Afghan Emir Abdur Rahman Khan.