Flag of Greece background as its official flag. After the Ottoman conquest, however, this symbol also found its way to a "new Constantinople" (or Third Rome), i.e. Moscow. Russia, deeply influenced by the Byzantine Empire, saw herself as its heir and adopted the double-headed eagle as its imperial symbol. It was also adopted by the Serbs, the Montenegrins, the Albanians and a number of Western rulers, most notably in Germany and Austria. Flag of Greece The national flag of Greece, popularly referred to as the "sky-blue - white" or the "blue-white" (), officially recognised by Greece as one of its national symbols, is
Flag of Greece the royal flags, which featured the coat of arms of the House of Schleswig-Holstein-Sonderburg-Glücksburg on a square version of the national flag. A square version of the land flag with St. George in the centre was adopted on 9 April 1864 as the Army's colours. The exact shape and usage of the flags was determined by Royal Decree on 26 September 1867. By a new Royal Decree, on 31 May 1914, the various flags of Greece and its military were further regulated. By this decree, the flag with the crown was adopted for use as a state flag by ministries,