The two countries with the second longest border in the world are the United States and Canada. Their border stretches approximately 8,891 kilometers (5,525 miles), making it the longest international land border between two countries. This extensive boundary includes both land and water borders, reflecting the vast and diverse geography of North America.
If you simply check a map of the world (google maps is a good source) you will see that the longest land border that Chile has is with Argentina.
That would be Nicaragua. According to the CIA World Factbook and the Encyclopedia of the Nations, the border between Honduras and Nicaragua is 922 km long (573 miles).
Canada has the longest coastline. The second longest is next to impossible to measure.
India shares its borders with Pakistan, China, Nepal, Bhutan, Burma and Bangladesh. Of these land borders, India shares its longest one with Bangladesh. The border between Bangladesh and India stretches 4,096 km (2,545 mi) and is the fifth longest land border in the world.
Asia is the continent with the longest coastline.
Kazakhstan and Russia share the second longest border at 6,846 km
The longest border separating two countries is the 8,891 kilometers (5,525 miles) boundary between Canada and the United States. It is the world's longest international border between two countries.
At 8891 km, the border between Canada and the USA is the longest between any two countries, but a major section of that border (with Alaska) is not contiguous with the rest. The longest contiguous section of border between two countries in the world is between Russia and Kazakhstan, at 6846 km.
Largest Yes, Russia is The First Canada Is the Second.
Russia has the longest border in the world, measuring over 60,000 kilometers. The country shares its borders with 14 other countries, spanning across Europe and Asia.
The Canade-United States border is the longest border in the world.
Pakistan and China border K2, which is the second-highest mountain in the world.
The longest international border is between Canada and the United States, stretching over 5,500 miles.
Russia
The longest land border in the world is between Russia and Kazakhstan, stretching approximately 7,500 kilometers.
The border between Canada and the United States is the longest international border in the world, stretching over 5,500 miles.
The Amazon River in South America is the longest river in the world. Tennessee does not border it.