Explanation

The length of the common border between Pakistan and Afghanistan new is 2611 km old was 2430km

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The common border between Pakistan and Afghanistan is called Durand Line

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British signed the Treaty of Durand line with Abur Rehman Khan

The agreement was signed on November 12, 1893, in Kabul, Afghanistan.

The agreement was signed between Sir Mortimer Durand, the Indian Foreign Secretary at the time and Amir Abdur Rahman Khan in Kabul.

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According to the Survey of Pakistan, the border between Pakistan and Afghanistan is 2611 km