The Islamic State of Iraq and the Levant which has captured much parts of Iraq including oil rich region of the country now poses a threat across the Middle East.ISIL is led by the shadowy Abu Bakr Al Baghdadi and backed by thousands of Islamist fighters in Syria and Iraq, including many westerners, and it appears to be surpassing Al Qaeda as the world’s most dangerous Islamist militant group.Abu Bakr al-Baghdadi, who heads the Islamic State of Iraq, reveals the Iraqi wing's determination to link its own fight against the Shiite-led government in Baghdad with the cause of rebels trying to topple the Iran-backed Syrian regime.