In 2007, after Hamas's legislative victories, the Fatah and Hamas engaged into a violent conflict, taking place mainly in the Gaza Strip, leading to effective collapse of the Palestinian national unity government. After the takeover in Gaza by Hamas on 14 June 2007, Palestinian Authority Chairman Abbas dismissed the Hamas-led government and appointed Salam Fayyad as Prime Minister. Though the new government's authority is claimed to extend to all Palestinian territories, in effect it became limited to the West Bank, as Hamas hasn't recognized the move and continued to rule the Gaza Strip. While PNA budget comes mainly from various aid programs and support of the Arab League, the Hamas Government in Gaza became dependent mainly on Iran until the eruption of the Arab Spring.