Manama, Dec. 15 (BNA): His Royal Highness Prince Salman bin Hamad Al Khalifa, the Crown Prince and Prime Minister, a cable of congratulations from Shaikh Khalid bin Ahmed Al Khalifa, Minister of the Royal Court, on the occasion of the Kingdom of Bahrain's celebration of its National Day and the 26th anniversary of His Majesty King Hamad bin Isa Al Khalifa’s accession to the throne and the accompanying national events. M.I, A.S, S.E