The longest border between any two countries in the world is between :
[amp_mcq option1=”Canada and the United States of America.” option2=”Chile and Argentina” option3=”China and India” option4=”Kazakhstan and Russian Federation” correct=”option1″]
This question was previously asked in
UPSC IAS – 2024
– Other long borders include Kazakhstan-Russia (approx. 7,644 km), Argentina-Chile (approx. 5,308 km), and China-India (approx. 3,488 km, includes disputed areas).
– The Canada-USA border is also known as the longest undefended border in the world.
– Canada-USA: ~8,891 km
– Chile-Argentina: ~5,308 km
– China-India: ~3,488 km
– Kazakhstan-Russian Federation: ~7,644 km
Comparing these lengths confirms that the Canada-USA border is the longest.