Geographical maps can be very interesting to consider, because behind every dash there are kilometers of fields, mountains, forests and steppes. People have already divided each piece of land among themselves and have not forgotten to mark the boundaries. Let's see which countries border the most densely?

9. China-India
The two largest Asian states have a large common border with a length of 2659 km. Relations between the two giant countries can not always be called friendly, but given the length of the border, they had to learn to live side by side.
8. Brazil-Bolivia
Now fast forward to the jungles of Latin America - it is there that the next longest border between Brazil and Bolivia passes. Its length is 3400 km.
7. Russia-Mongolia
A little longer was the Russian-Mongolian border, which is 3485 km. And it would seem that this Mongolia is not so big!
6. India-Bangladesh
Let's go back to India, which almost surrounds little Bangladesh on all sides. From this and such a length of the border - as much as 4053 km!
5. Russia-China
The border of Russia and China is even larger than in the case of Mongolia - 4209 km. However, we must admit that the territories there are quite deserted.
4. China-Mongolia
Naturally, in the next place is the border of China and Mongolia, which is 4630 km. The thing is that Mongolia is facing Russia with only one side, and China embraces all the others.
3.Chile-Argentina
If you thought Latin America was over, you were wrong! Two long states border each other almost along the entire length and occupy an honorable third place with a common border of 5308 km.
2. Russia-Kazakhstan
The silver medal is received by the union states of Russia and Kazakhstan, whose land border lasts continuously for 7513 km. This is an absolute record, but the first place suddenly goes ...
1. USA-Canada
Having got Alaska, the United States became the owner of the largest land border with Canada, which together is 8893 km: 6416 km falls on the central regions (mainland) and 2477 km belong to the border between Canada and Alaska.