Prince Mishaal bin Abdulaziz, President of Allegiance-Pledge Commission has sent a cable of congratulations to Qatar's Emir Sheikh Hamad bin Khalifa Al Thani, on the anniversary of his country's National Day. The Prince wished the Qatari Emir constant good health and happiness, the preservation of Qatar's security and stability and prosperity, and further progress and prosperity for the Qatari brotherly people under their wise leadership.