The Custodian of the Two Holy Mosques, King Salman bin Abdulaziz Al Saud, has sent a cable of congratulations to President Frank-Walter Steinmeier of the Federal Republic of Germany, on the Unity Day of his country. In his cable, the Monarch expressed his sincere congratulations and best wishes of health and happiness to His Excellency the President, and further progress and prosperity to the Government and people of the friendly Federal Republic of Germany.