Abu Bakr al-Baghdadi's whereabouts are unknown, and he has not been heard from in almost a year ■ Recording in which he allegedly calls on followers to 'persevere' could not be authenticated
The 'Islamic State' helped strengthen the sense of nationalism in Middle Eastern states, and the organization's disintegration has dealt a historic blow to the idea of an Islamic State without quotation marks
Al-Qaida appears to be a leader among terror groups in Syria and Egypt that compete for manpower, money and influence. Unlike ISIS, Al-Qaida is capable of mobilizing popular support
Militants had publicly identified the Sinai mosque, which also served as a Sufi center, as a target months ago
The fall of Boukamal means remaining ISIS militants are currently holed up in small towns and villages along in Syrian desert
Iraqi and Syrian officials, however, still fear ISIS will reconstitute as a guerrilla force, capable of waging attacks without territory to defend
Islamic State will continue to thrive, even without territory, as long as the anarchy and resentment that nourished it continues
After the fall of its de facto capital of Raqqa, few expect ISIS to completely go away, or for the bloodshed in the two countries and the region to end quickly
British think-tank finds 'relationship between committing terrorist attacks and having a history of physical and/or sexual violence,' Guardian reports
With help of Russian airstrikes, forces work to push Islamic State fighters from their last stronghold in central Syria
'Terrorists should be killed on the battlefield, not bused across to the Iraqi border,' tweeted U.S. envoy to the operation
Mediated talks with Islamic State militants in pocket straddling the Syria-Lebanon border over soldiers they are holding began shortly thereafter
Reports say 10-year-old English-speaking boy might be son of an American soldier whose mother returned to Syria to join the group
'The State,' a new British Channel 4 mini-drama that depicts young people who travel to Syria to join Islamic State has attracted criticism
Man reportedly admits to using eBay to push ISIS funds through PayPal as part of international terror network
The operation is directly aided by the United States and Britain, and will include cooperation with Hezbollah and the Syrian army
During her visit to Israel coinciding with a bill to recognize the Yazidi genocide, UN Goodwill Ambassador Nadia Murad says 'Israelis understand my stories'
Russia said in June that it might have killed Baghdadi when one of its air strikes hit a gathering of Islamic State commanders; U.S. says unable to confirm if the leader is alive or dead
The extremist organization has built-in plans to endure and has shown a degree of flexibility that will be difficult to counteract
The announcement comes a day after a major counterattack by ISIS militants
