How much of pakistan was part of Afghanistan?

An Afghan poster mentioned that the Nuristani (formerly Kafiristanis, or Kafirs of the Hindukush) are an Iranian group.

Here are some facts about Durrand... its a imaginary line… nothing else and nothing more.

Durand treaty, the whole story.

The line devised by the British was worked by the British Colonial Officer Durand and thus became known as the Durand Line. The document was to be ratified by the legislative body in Afghanistan. It never happened. Legally the Durand Line remains as an imaginary line dividing families on both sides. It has never been demarcated either, especially from Khyber Agency north to Chitral. This artificial and imaginary line is increasingly becoming an area of conflict between Pakistan and Afghanistan even with Taleban regime that ironically has had the political and military support of the government of Pakistan. As in 1999, a visit by an armed convoy of Taleban officials to Momand Agency has touched many nerves in Pakistan and has left it in shock. Friday Times of Pakistan reported the incident.

Indeed, Durand treaty was nullified from inception, since British presented Durand document in English and the person of Abdul Rahman Khan did not understand English language, therefore this leads the suspicious nature of forgery and or false documentation. The Dari or Pashto translation of this document or agreement has never been signed by Amir Abdul Rahman Khan, suggesting that he nullified this agreement. In Addition, after the “Gandomak” treaty, Afghanistan was no longer independent and was occupied by the British colonial power. The Durand Treaty was singed by Abdur Rahman Khan under duress without any consultation with the Afghan nation or even to put this issue to “loya jirga” (Grand Assembly of Afghan leaders). In this case, the British colonial occupiers acted as if a thief or terrorist was to occupy your home and pointed a gun to your head to sign off a quarter of your family's home without you even consulting the rest of your family, let alone asking about its justice. Even if we were to clearly prove that Afghanistan was (a) under no colonial occupation during that time; (was entirely independent and represented by an independent and rightly elected leader (Abd Rahman Khan) who was acting in accordance with its national interest and put the "Durand Treaty" issue to our “loya jirga” and consulted all tribal leaders on both sides, this treaty can still be considered as null and void as per the draft text of this treaty itself. The treaty is a personal contract with Abdur Rahman. The treaty states Britain must continue to pay Abdur Rahman 1.8 laaks per annum in exchange for the frontier lands. The British stopped payment after Amir Amanullah declared the 3rd Anglo-Afghan War on them. The treaty, therefore, is a lease in default. A lease in default that has expired. The treaty was never meant to be an international boundary in the first place to separate the two countries. It purpose was ‘fixing of the limits of their [Amir’s and British India’s] respective spheres of influence’, the object being the extension of British authority and not that of the Indian frontier at that time.

Furthermore, if the treaty was a solid, unchangeable, unbreakable, and legally binding document that determined Afghanistan’s boarders with the then British colonial occupiers, then why was there a need for this treaty to be reconfirmed or ratified by the son of Abd Rahman Khan in 1905? It is obvious that Durand treaty was nothing more than a temporary agreement to create a buffer zone for the British colonial occupiers to prolong their grips on the Indian subcontinent for longer than it took and that’s why they wanted to protect their interest by cutting the Afghan territories into two halves till the end of their occupation. Experience has shown that Afghans were their biggest nightmares since they lost and suffered heavily during their wars with them. All they wanted was a breathing space to divide the great worriers. However, when the British left India in 1947 for good, it should have returned Afghan territory at least including the area up to the natural border, the River Indus to Afghanistan. Instead, still dreaming of keeping its colonial interests alive in the subcontinent the British gave this territory to Pakistan, thus creating a double buffer zone between the expansionist Soviet Union and the Indian Ocean. This deprived Afghanistan of direct access to the sea. But this was not the only objective, the British-authored project of Durand Line wanted to achieve. It wanted to separate the Pashtunland by an imaginary line. It would divide not only the land, but would separate families, fathers from sons and brothers from brothers..

 in addtion British wanted to create hatred between Muslim of India(pakistanis) and afghans who have always acted as protector of Muslim of India against Hindus.