Saudi Arabia

green, a traditional color in Islamic flags, with the Shahada or Muslim creed in large white Arabic script (translated as "There is no god but God; Muhammad is the Messenger of God") above a white horizontal saber (the tip points to the hoist side); design dates to the early twentieth century and is closely associated with the Al Saud family which established the kingdom in 1932; the flag is manufactured with differing obverse and reverse sides so that the Shahada reads - and the sword points - correctly from right to left on both sides

one of only three national flags that differ on their obverse and reverse sides - the others are Moldova and Paraguay