Explanation

• The 49th Parallel is an important latitude line in North America.
• It forms most of the border between the USA and Canada.
• It was established through historical agreements between the two countries.
• It is one of the longest straight international borders in the world.
• It separates southern Canada from northern United States.

Last verified on 16-05-2026

Explanation

• The Military Demarcation Line (MDL) separates North Korea and South Korea.
• It was established under the 1953 Korean Armistice Agreement.
• The MDL runs through the Korean Demilitarized Zone (DMZ).

Last verified on 27-09-2026

Explanation

• Sri Lanka is an island country in South Asia.
• It has no land border with any other country.
• It is located in the Indian Ocean, southeast of India.
• Sri Lanka is separated from India by the Palk Strait and the Gulf of Mannar.

Additional information:

Five countries that have no land border because they are island countries:

1. Sri Lanka
2. Maldives
3. Japan
4. Iceland
5. Madagascar

Last verified on 26-09-2026

Explanation

• The Goldsmid Line marks the border between present-day Pakistan and Iran.
• It was established through the Goldsmid Commission in 1871–1872.
• The boundary was surveyed under Major-General Frederick John Goldsmid.
• It forms part of the Pakistan–Iran international border.

Last verified on 05-09-2026

Explanation

• The Durand Line was established as the official border between British India and Afghanistan.
• It was drawn in 1893.
• British representative: Sir Mortimer Durand
• Afghan ruler: Amir Abdur Rahman Khan
• It later became the international border between Pakistan and Afghanistan.
• Length: Around 2,640 km

Last verified on 09-06-2026