The start of the quadrilateral meeting of Iran, Pakistan, Turkey, Saudi Arabia The quadrilateral meeting of senior officials of Iran, Pakistan, Turkey and Saudi Arabia on regional security and stability began today, Monday, October 26, under the auspices of Tehran. Mohsen Razai, Secretary of the Supreme National Security Council, Khaled bin Salman, Saudi Defense Minister, Asim Munir, Pakistan Army Commander, and Ibrahim Kalin, Head of the Turkish Intelligence Organization, are present at this meeting. Pasdaran Cyber Corps.