Secretary Gates welcomes Chief of the Pakistani Army Staff Gen. Ashfaq Kayani. Secretary of Defense Robert M. Gates (right) welcomes Chief of the Pakistani Army Staff Gen. Ashfaq Kayani to his Pentagon office for security discussions on Oct. 20, 2010. Chairman of the Joint Chiefs of Staff Adm. Mike Mullen (left) also participated in the talks. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 693538-F-NNW93-359.jpg Photo Gallery