Flag of Greece ensign Greek Orthodox merchants (better: merchants from the Greek-dominated Orthodox "millet") were allowed to fly on their ships, combining stripes with red (for the Ottoman Empire) and blue (for Orthodoxy) colours. After the Treaty of Küçük Kaynarca, Greek-owned merchant ships could also fly the Russian flag. During the uprising of 1769 the historic blue cross on white field was used again by key military leaders who used it all the way to the revolution of 1821. It became the most popular Revolution flag, and it was argued that it should become the national flag. The "reverse" arrangement, white cross on
Flag of Greece cross) flag. On 7 February 1828 the Greek flag was internationally recognised for the first time by receiving an official salutation from British, French, and Russian forces in Nafplio, then the capital of Greece. After the establishment of the Kingdom of Greece in 1832, the new king, Otto, added the royal Coat of Arms (a shield in his ancestral topped by a crown) in the centre of the cross for military flags (both land and sea versions). The decree dated 4 (16) April 1833 provided for various maritime flags such as the war flag or naval ensign (set at 18:25),