Early Tests Find Traces of Mustard Gas in ISIS MortarsSenior American military official confirms preliminary tests show traces of sulfur mustard on mortars fired by ISIS.
ISIS Claims American Responsible for Suicide BombingIslamic State names American citizen as one of four terrorists 'martyred' in north Iraq suicide attack.
Chemical Watchdog 'Concerned' by ISIS Use of Mustard GasOrganization for the Prohibition of Chemical Weapons voices serious concern over reports that ISIS used chemical weapons.
Testing Confirms ISIS Used Mustard Gas in SyriaOfficials say test results from ISIS attack in Syria confirm mustard agent was used. Similar attack in Iraq still under investigation.
Report: ISIS Used Mustard Gas Against Kurds in IraqSenior American officials say it is believed ISIS jihadists used mustard agent in an attack on Kurdish forces in Iraq.
Will Iraq be Partitioned?Iraqi PM furious as outgoing top US commander in Iraq says it may need to be divided; ISIS truck bombing illustrates volatile reality.
ISIS Truck Bomb Devastates Baghdad Market, Killing 38At least 38 killed and 74 more injured in one of the deadliest single attacks to hit the Iraqi capital in months.
UN Warns of Shortage in Food Assistance to IraqA major shortage of aid funding for Iraq threatens food assistance, warns the UN's humanitarian coordinator for the country.
ISIS Executed 2,000 in Mosul Since TakeoverOfficials says ISIS has executed more than 2,000 people in and around the Iraqi city of Mosul since seizing it last year.
Fitch Ratings: Iraqi Economy at Risk of DefaultAdding to embattled country's woes, Fitch Ratings grades Iraq lowest possible rating, B-.
Displaced Iraq Christians in Frontline Prayer for ReturnChristian clerics pray in ruins of a monastery not far from jihadists, marking a year since Christians driven from ancient centers.
Britain Extends Iraq Airstrikes By a YearBritain announces it is extending its airstrikes against ISIS group targets in Iraq by a year to March 2017.
Kurdish Rebels Prepare for War with TurkeyIn their Iraqi bastions, Kurdish PKK militants bracing for all-out conflict with Turkey as Ankara steps up bombing campaign.
Iraqi Politician: Iraq Should Open Embassy in IsraelIraqi Ummah Party leader wants normalization with Israel, says Muslim world created ISIS by tolerating 'mentality of vengeance.'
Iran Starts Building $2.5 Billion Power Plant in IraqIran announces start of its largest engineering services project ever, as its influence expands in Iraq even as American influence fades.
US Chief of Staff Blames Obama-Clinton Iraq Policy for ISISUS Army general who spent most years in Iraq condemns 'frustrating' pullout against his advice that led to rise of ISIS.
White House Decries ISIS 'Atrocities' After Bombing Kills 90ISIS bombing on Muslim holiday leaves 16-ft wide crater and 90 dead. White House condemns 'purposeful and vicious' civilian targeting.
Hamas, Saudis to Work Together Against ISIS?There's no love lost between Hamas and Saudi Arabia, but a common enemy may bring the two together.
US Returns Hundreds of Iraqi Artifacts After Raid on ISISISIS's top financier caught with artifacts raided from Assyrian-era historical sites; they were likely to be sold on the black market.
ISIS Breaks Own Cruelty Record: Blows Up Baby for DemonstrationArabic media reports say ISIS trainer taught recruits booby-trap methods by blowing up infant child.
21 Killed in String of Baghdad BombingsA string of bomb explosions, including two suicide attacks, kill at least 21 in Shiite-dominated neighborhoods of Iraqi capital.
ISIS Jihadists Attack Iraqi Forces in AnbarISIS fighters attack Iraqi police and soldiers in an area considered a major staging ground for operations to reconquer Anbar.
Obama: The Fight Against ISIS Will be LongPresident Obama says the coalition battling ISIS would intensify its campaign, but warns there could still be setbacks.
How ISIS is Making Sunnis an Offer They Can't RefuseExperts reveal the tactics of intimidation and promises of protection that ISIS is using to try and tip the power balance in Iraq, Syria.
Iraqi Warplane Accidentally Bombs Baghdad; Seven DeadAt least seven dead after plane malfunctions over eastern Baghdad.
Christians Fight Back Against ISIS's Islamic WarAfter suffering choice of forced conversion, tax to stay Christian or death, Iraqi Christians are taking up arms to fight for their faith.
US, Iran-Backed Shi'ite Forces Not CooperatingPentagon reveals Shi'ite fighters at Iraqi base where 450 US troops were sent, but that the two forces not working together to fight ISIS.
Australian Jihadists Beheaders Killed in IraqTwo Australian citizens believed killed fighting for ISIS in Iraqi city of Mosul; one posted pictures of young son holding severed heads.
American Airstrike Kills 'Person of Interest' in Benghazi AttackPentagon says an ISIS operative involved in the 2012 Benghazi attack was killed in an airstrike in northern Iraq.
ISIS to Turn Biblical Prophet Jonah's Tomb into a 'Fun Park'Iraqi minister decries 'crime against heritage' as ISIS contracts to build 'park and fun city' on tomb of ancient Jewish prophet in Mosul.
One Year On, No Quick Fix to ISIS 'Caliphate'Islamic State here to stay for foreseeable future, experts say - but how is it enduring US-led air campaign and Kurdish onslaught?
Watch: Rice's Damning List of Hillary Clinton's AccomplishmentsNational Security Adviser praises Democratic candidate for Iraq pullout and TPP - exposing Middle East blindness and trade deal flip-flop.
ISIS Foreign Legion Unleashes Quadruple Car BombingFour ISIS suicide car bombers, a Kuwaiti, Palestinian Arab, Briton and German, leave at least 11 fighters dead in Toyota convoy of death.
Iraq's Ex-PM Blames ISIS Success on Mother of All ConspiraciesInstead of admitting attempt to commandeer army and isolate Sunni majority, ex-premier says 'it's a conspiracy to deny conspiracy.'
ISIS Video Celebrates a Year to Its 'Caliphate'One year later, ISIS recalls capture of Mosul when US-trained Iraqi troops fled in a lavish propaganda film.
Obama Sends More Troops to Iraq, But Still No ISIS Strategy450 more US personnel will join 3,100 military advisers already in Iraq; Republicans slam Obama for 'tactical' moves without strategy.
Obama Approves 450 More Troops for IraqPresident Obama approves the deployment of 450 more American military trainers to Iraq as fight against ISIS continues.
Report: Yazidis Kill Arab Villagers in Revenge AttackIn response to endless massacres and mass rapes by ISIS and other jihadists, Yazidi militias strike Sunni villages in Iraq.
Pentagon Planning to Deploy More Troops to IraqPentagon spokesman reveals new plans to train more Iraqi forces and Sunni tribal fighters are being finalized.
Iraqi Government HQ Lethally Assaulted by TerroristsTerrorists launch attack during council meeting, leaving civilians and police dead; attack exactly one year after ISIS launched offensive.
Iraqi Forces Advance in ISIS-Controlled BaijiIraqi forces advance against ISIS in Baiji as they try to retake the strategic town for a second time.
'Voice of Saddam's Regime' Dies at 79Former Iraqi foreign minister Tareq Aziz dies in hospital after years of poor health as a convicted prisoner.
Sunni Tribes in Iraq Swear Loyalty to ISISInfluential tribal sheikhs announce allegiance to ISIS and express enmity to Shi'ite-run government, as sectarian tensions continue to boil.
Iraq Forces Repel ISIS Car Bomb AssaultIraqi security forces use anti-tank missiles to repel suicide bombers driving vehicles packed with explosives, including a bulldozer.
Fight Against ISIS Could Take 'A Generation or More'General John Allen notes ISIS is a 'global threat' that has wreaked havoc on the Middle East; fight 'will be a long campaign.'
More than 10,000 ISIS Jihadis Killed in AirstrikesUS Deputy Secretary of State dismisses criticism of air campaign, insists 'significant progress' has been made in fight against ISIS.
Iranian Revolutionary Guards Commander Killed in IraqCommander Jassem Nouri was fighting ISIS alongside Hezbollah in Ramadi takeover.
Two ISIS Propaganda Filmmakers Killed in Iraq AirstrikeAmerican national believed to be one of dozens of ISIS commanders killed in response to brutal execution of Iraqi soldier.
Iraqi PM: We Lost 2,300 Armored Vehicles to ISISIraqi security forces lost 2,300 Humvee vehicles when ISIS overran Mosul, Prime Minister Haider al-Abadi reveals.
Just Like ISIS: Iraqi Shia Militiamen Burn Sunni Man AliveIn gruesome reenactment of ISIS burning of Jordanian pilot, Sunni man accused of belonging to ISIS burned by Iraqi militias.
ISIS Claims Blasts at Upscale Baghdad HotelsISIS claims responsibility for car bombings at two upscale Baghdad hotels that killed at least nine people.
Dual Bombs Blast Baghdad HotelsCar bombs rip through upscale hotels in center of Iraqi capital, leaving at least 9 dead and dozens others wounded.
Blasts in Baghdad Kill at Least 3Car bombs explode near two of the Iraqi capital's most high-profile hotels, killing at least three people and wounding 13.
Iraq Exhumes 500 Bodies from ISIS Massacre in TikritRemains of nearly 500 people, believed to have been executed by ISIS during Speicher massacre in Tikrit, exhumed Wednesday.
When Baghdad Burned: The June 1941 Farhud MassacreThe fusion of Nazism and Arab nationalism in the Middle East spelled unimaginable horror for Iraq's ancient Jewish community.
Senior Shia Cleric Criticises Sectarian Name of Anti-ISIS Op.Influential Shi'ite cleric says codename for operation against ISIS in Anbar could paint already-sectarian war...as a sectarian war.
US Laments Shia Militias' Blatantly Sectarian Name for Iraq Op.Shia Islamist militias inflame tensions by using Shia slogan for operation to oust ISIS from majority-Sunni Anbar Province.