The boundary between India and Pakistan is primarily a geopolitical boundary that was drawn during the partition of British India in 1947. This boundary is known as the Radcliffe Line, named after Sir Cyril Radcliffe, who was tasked with delimiting the borders between the two new nations.
In terms of its nature, the India-Pakistan border can be classified as a contested boundary, particularly in regions such as Jammu and Kashmir. This area has been a significant point of conflict between the two nations, leading to wars and ongoing tensions.
The border is also characterized by physical barriers in certain regions, including fencing and military fortifications, especially in areas like the Punjab where both countries have a heavy military presence. In summary, the India-Pakistan boundary is a combination of a geopolitical boundary that has become a contested and militarized frontier due to historical and territorial disputes.