Flag of Ukraine bands of blue and yellow colour."" (). In addition to the normal horizontal format, many public buildings, such as Verkhovna rada in Ukraine use vertical flags. Most town halls fly their town flag together with the national flag in this way; some town flags in Ukraine exist only in vertical form. The proportions of these vertical flags are not specified. When hung like a banner or draped, the blue band should be on the left, as illustrated. When flown from a vertical flagpole, the blue band must face the mast. The flag did not appear on Ukrainian official postal stamp
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