Explanation

Following provinces of Afghanistan share border with Pakistan:-

1. Barlakhshan,
2. Nurestan,
3. Kobar.
4. Nangarhar,
5. Paktiya.
6. Khost,
7. Paktika,
8. Zabul.
9. Kandahar,
10. Helmand,
11. Nimruz.

Afghanistan is bordered by Pakistan to the east and south

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·        Afghanistan border is 2,611 KM long in the west (northwest)