Isis claims to have 10,000 fighters in Iraq and Syria, the group according to popular rumor is said to have over $2,000,000,000 billion dollars in funding and also connection in almost all Countries worldwide. In 2003 United state and its allies invaded Iraq because of the regime of Saddam Hussein, Saddam was discovered hiding in a hole and was captured and later hanged... 2011-2013 Syria uprising, the anti government uprising in the country turned violent and led to a civil war, ISI now led by Abu Bakr al Baghdadi supported Syria's opposition by setting up a militant Nusra Front and sending cash and fighters. The group brutal tactics were condemned by rebels, Al-Qaeda also disowned it. ISI then rebranded itself ISIS (The Islamic State In Iraq)... in Iraq, meanwhile US troops withdrew and violence perpetrated by ISIS role. 2014, ISIS made crucial gain in western Iraq and advanced north and east, The BBC's Paul Wood was caught in a gun battle between Kurdish troops and ISIS fighters. ISIS conquest of second city Mosul in June send shockwaves around the world. ISIS went on to declare a Islamic State across Iraq and Syria and rebranded itself the Islamic State. In August, the US began air strikes against the Jihadists whose advances have forced more than a million Iraqis including minority communities to flee the violence. Video source: http://www.bajaomoniyi.tv/2014/08/rise-of-islamic-state-bbc-news.html