 R1a1a has been found in various forms, in most parts of Western Asia, in widely varying concentrations, from almost no presence in areas such as Jordan, to much higher levels in parts of Kuwait and Iran.The Shimar (Shammar) Bedouin tribe in Kuwait show the highest frequency in the Middle East at 43%., noted that in the western part of the country, Iranians show low R1a1a levels, while males of eastern parts of Iran carried up to 35% R1a1a.