HE the Prime Minister and Minister of Interior Sheikh Abdullah bin Nasser bin Khalifa al-Thani and HE the Deputy Prime Minister and Minister of State for Cabinet Affairs Ahmed bin Abdullah bin Zaid al-Mahmoud  with  French Foreign Minister Jean-Marc Ayrault and Turkey’s former prime minister Ahmet Davutoglu  at the opening  of the ninth edition of the World Policy Conference at Doha Sheraton Hotel yesterday. In his opening speech, the Prime Minister welcomed the participants and extended his thanks to French Institute of International Relations and to all those who contributed to the organisation of the conference. “We are all aware that our modern world is going through an unusual stage full of serious challenges for security, stability and sustainable development due to the continued disruption of the global system which suffers from double standards in dealing with peoples’ issues,” the Prime Minister said. “However, more efforts should be made to maximise what has been achieved in the field of scientific progress and investment in human accomplishments in all aspects of life which made it impossible for any country to remain in isolation and away from the international surrounding,” he added.