 In 1947, Prime Minister of Afghanistan, Mohammed Daoud Khan, had rejected the Durrand Line, which was accepted as international border by successive Afghan governments for over a half a century.The British Raj also came to an end and the British Crown colony of India was partitioned into the new nations of India and Pakistan, the latter which inherited the Durrand Line as its frontier with Afghanistan.Daoud Khan's irredentist foreign policy to reunite the Pashtun homeland caused much tension with Pakistan, a nation that allied itself with the United States.