Advisor to Yemeni President for Defense and Security Affairs Maj. Gen. Ali Mohsen Saleh left for Qatar today to participate in the 13th Doha Forum to be held on May 20. Saleh pointed out in a statement that he carries a message from Yemeni President Abed Rabbo Mansour Hadi to Qatari Emir Sheikh Hamad bin Khalifa Al Thani on means of enhancing bilateral relations in various fields.