Flag of Greece Additionally, the flag may also be flown on days of national mourning, half-mast. The Minister of the Interior has the authority to proclaim flag days if they are not already proclaimed, and proclaiming regional flag days is vested with the elected head of each regional unit (formerly prefectures). Although 17 November is not an official national holiday, Presidential Decree 201/1998 states that respects are to be paid to the flag on that particular day. The War flag (equivalent to regimental colours) of the Army and the Air Force is of square shape, with a white cross on blue background. On
Flag of the Soviet Union building of communism. The flag's design was legislated in 1955, which gave a clear way to define and create the flag. This resulted in a change of the hammer's handle length and the shape of the sickle. The adopted statute stated that: The final design of the flag was adopted in 1980. The design was kept the same except that the background colour was changed. The colour was brightened from a near-burgundy crimson to a light to medium red. That flag remained the national flag of the Soviet Union up until late 1991, when a tricolour was formally adopted by