The group Tanzim Qaidat al-Jihad fi Bilad al-Rafidayn (Al-Qaeda in Iraq) formed as an affiliate of Al-Qaeda network of Islamist militants during the Iraq War. The group eventually expanded into Syria and rose to prominence as the Islamic State of Iraq and the Levant (ISIL) during the Syrian Civil War. In the summer of 2014, the group launched the Northern Iraq offensive, seizing the city of Mosul. The group declared itself a caliphate under Abu Bakr al-Baghdadi on 29 June 2014 and renamed itself as the "Islamic State". ISIL's claim to be the highest authority of Muslims has been widely rejected. No prominent Muslim scholar has supported its declaration of caliphate; even Salafi-jihadist preachers accused the group of engaging in political showmanship and bringing disrepute to the notion of Islamic state.