Prince Philip, Duke of Edinburgh Athens for a month in mid-1939. At the behest of the Greek king, George II, he returned to Britain in September to resume training for the Royal Navy. He graduated from Dartmouth the next year as the best cadet in his course. During the Second World War, he continued to serve in the British forces, while two of his brothers-in-law, Prince Christoph of Hesse and Berthold, Margrave of Baden, fought on the opposing German side. Philip was appointed as a midshipman in January 1940. He spent four months on the battleship HMS "Ramillies", protecting convoys of the Australian Expeditionary Force
Prince Philip, Duke of Edinburgh on Sino-British relations, but it shaped his own reputation. Philip has held a number of titles throughout his life. Originally holding the title and style of a prince of Greece and Denmark, Philip abandoned these royal titles prior to his marriage, and was thereafter created a British duke, among other noble titles. The Queen formally issued letters patent in 1957 making Philip a British prince. When addressing the Duke of Edinburgh, as with any male member of the royal family except the monarch, the rules of etiquette are to address him the first time as "Your Royal Highness", and thereafter