His Royal Highness Prince Mohammed bin Salman bin Abdulaziz Al Saud, Crown Prince, Vice President of the Council of Ministers and Minister of Defense, has sent a cable of congratulations to Duke Henri, the Grand Duke of the Grand Duchy of Luxembourg on the anniversary of his country's National Day. HRH Crown Prince wished the Grand Duke permanent good health and happiness and the Government and people of the Grand Duchy of Luxembourg steady progress and prosperity.