Operation Viking Hammer was an unconventional warfare operation during the Iraq War which took place in northern Iraq, commonly known as Iraqi Kurdistan. The goal of the operation was to eliminate the Ansar al-Islam terrorists as they had occupied parts of Kurdistan and created the Islamic Emirate of Byara. Ansar al-Islam was established by former al-Qaeda members in 2001 as a Salafist Islamist movement that imposed a strict application of Sharia in villages it controlled.