The Secretary General of the Arab League Amr Moussa expressed his appreciation of the Custodian of the Two Holy Mosques, King Abdullah bin Abdulaziz Al-Saud, who chaired the last summit for his keenness on Arabism and sincerity to religion. Addressing the opening ceremony of the 20th Arab summit here today, Moussa commended the great support provided by the Custodian of the Two Holy Mosques for the Arab League believing in its pivotal role at the level of Arab relations. He pointed to the major challenges facing the future of this nation and its vital issues, warning of the dangers posed to the Arab nation currently.