Chief of Army Staff General Ashfaq Kayani has left for United States to attend the third phase of Pak-US strategic dialogue which would start in Washington from tomorrow. Pakistan Army chief will hold meetings with US military officials and the members of Obama administration during his stay in United States, ISPR spokesman said. The officials of the two countries will consider cooperation in energy, agriculture, education, security and other sectors in the talks that will last for three days. Foreign Minister Shah Mehmood Qureshi will head the Pakistani delegation, while the US team will be headed by the US Secretary of State Hillary Clinton. Army Chief Gen. Kayani and Finance Minister Abdul Hafeez Shaikh will also attend the meeting.