Pakistan five-year term on 15 November 2007, the new elections were called by the Election Commission. After the assassination of Benazir Bhutto in 2007, the PPP secured the most votes in the elections of 2008, appointing party member Yousaf Raza Gillani as Prime Minister. Threatened with impeachment, President Musharraf resigned on 18 August 2008, and was succeeded by Asif Ali Zardari. Clashes with the judicature prompted Gillani's disqualification from the Parliament and as the Prime Minister in June 2012. By its own financial calculations, Pakistan's involvement in the war on terrorism has cost up to ~$118 billion, sixty thousand casualties and
Prime Minister of Pakistan meets on the twenty-first day after a general election (at least every five years) unless the President calls for a vote of no confidence. Whichever member of the National assembly is chosen serves as the Prime Minister until the next election or until he fails to maintain the confidence of the National Assembly. The Prime Minister is required to make and subscribe to, in the presence of the President, an oath or affirmation that they shall protect, preserve and defend the Constitution as follows: Prime Minister of Pakistan The Prime Minister of Pakistan ( — , ; lit. "Grand Vizier")