The Iraqi–Kurdish conflict consists of a series of wars and rebellions by the Kurds against the central authority of Iraq during the 20th century, which began shortly after the defeat of the Ottoman Empire in World War I and lasting until the U.S. invasion of Iraq in 2003. Some put the marking point of the conflict beginning to the attempt by Mahmud Barzanji to establish an independent Kingdom of Kurdistan, while others relate to the conflict as only the post-1961 insurrection by the Barzanis. The conflict lasted until the US invasion of Iraq in 2003, though tensions between the Kurdish autonomy and the central Iraqi government have continued.