Abdulrahman bin Hamad Al-Atiyyah, the Secretary General of the Gulf Cooperation Council, has described Doha agreement which was singed by the Lebanese rivals today as a great historic achievement. He congratulated Sheikh Hamad bin Khalifa Al Thani, Emir of Qatar, who is also President of the rotating Presidency of the GCC Supreme Council, the Lebanese people and the Arab world on the success of the Lebanese Dialogue conference, lauding the great effort exerted by the Qatari leadership, including the effective and crucial role played by Premier Sheikh Hamad bin Jasem bin Jabr Al Thani, Qatari Prime Minister and the members of the Arab Ministerial Committee for helping bringing close the views of the Lebanese factions. He said this is an excellent success for the Arab and Gulf diplomacy in achieving reconciliation in the Arab region. He confirmed that the GCC countries would continue to support the stability and progress of Lebanon.