Al Qaeda returns captive Spanish journalistsThree journalists held for a year by Al Qaeda's Syrian affiliate finally return to Madrid, thanks to 'collaboration of allies and friends.'
Why are Syrians still flocking to ISIS?New report reveals what drives Syrians - and even Syrian children - into the arms of jihadist groups like ISIS and Nusra Front.
Israeli Arab sentenced for joining Al Qaeda in SyriaArab resident of northern Israel handed tough sentence after returning to Israel, refusing to renounce murderous jihadist ideology.
ISIS retakes Turkey border down from Syrian rebelsAl Qaeda rebels launch major offensives throughout Syria, which ISIS makes advances along Syrian-Turkish border.
US strike in Syria kills several Al Qaeda terroristsFollowing death of Nusra Front's spokesman, additional US airstrike kills scores more Al Qaeda fighters.
Syrian heart-eating rebel killedIslamist rebel, who appeared in shocking video cutting out and eating the heart of a dead regime soldier, shot dead by rival rebels.
Watch: Rebels down regime warplane in Syria, capture pilotAl Qaeda-aligned Ahrar al-Sham rebels capture one pilot alive near Al-Eis, which jihadists recently seized from regime forces.
Al Qaeda routs western-backed Syrian rebels in IdlibNusra Front and allied jihadists storm Division 13 weapons depot, seize US-made TOW anti-tank missiles.
Under the skin of Al-Qaeda's would-be suicide bombersA cheerful Saudi, a doubtful Briton and a Syrian obsessed with 72 virgins feature in controversial film on Nusra Front's bombers.
Israeli Arab convicted of joining Nusra FrontArab citizen from the north illegally breached Israel's borders in leaving for Syria to train with Al Qaeda branch.
Russia bombs Al Qaeda prison, kills 21 civiliansAirstrikes on Syrian jail leave 21 civilians, 29 terrorists and 7 detainees dead, with 30 wounded and many in critical condition.
Al Qaeda rejects 'plot' to negotiate with AssadAl Qaeda affiliate in Syria condemns the 'treason' of opposition groups who agreed to negotiate with autocrat while demanding he step down.
Clashes erupt between Syria Islamists, KurdsKurdish forces battle Al Qaeda's Nusra Front in Syria's northern Aleppo Province.
Al Qaeda claims it downed two Russian drones in SyriaNusra Front rebel group says it took down the drones over a military airport in northern Syria.
Syrian Rebels Place Bounty on Assad, NasrallahAl Qaeda's Nusra Front offers millions of dollars to anyone who kills Syrian dictator or Hezbollah leader - even if they're non-Sunnis.
Kurds Claim Tripped Refugee Was an Al Qaeda TerroristHungarian journalist was fired for 'trip heard round the world' amid Syrian refugee crisis - but were fleeing migrants really terrorists?
Former CIA Chief: US Should Support Al Qaeda to Defeat ISISFormer commander of US forces in Iraq and Afghanistan David Petraeus takes 'enemy of my enemy' approach to a whole new level.
Rebels Bombard Shia Villages as 'ISIS-Free Zone' Inches CloserSyrian rebels led by Al Qaeda fire some 1,000 rockets at Shia villages; Al Qaeda announces withdrawal from area slated for 'ISIS-free zone.'
US Syria Policy Mocked as Al Qaeda Hunts Down US-Backed RebelsWhite House Syria strategy derided as empty 'media statements' by Assad regime, as Nusra Front kidnaps more pro-US rebels.
Syria Regime Forces Battle Rebels Near Assad BastionFierce clashes ongoing near Assad's ancestral village between Syrian regime forces including Hezbollah, and rebels led by Al Qaeda
Al Qaeda Shows Off Captured US-Trained Rebels in New VideoAnother blow for White House's slowly-slowly strategy in Syria, as Nusra Front gloats over rout of US-trained Division 30.
Al-Qaeda Attacks US Trained 'Moderate' Rebels in SyriaAl-Qaeda's Nusra Front launches assault on HQ of 'New Syrian Force,' leaving casualties on both sides, day after alleged abductions.
Syrian Christian Leader Feared Kidnapped by Al QaedaFather Dhiya Aziz becomes latest Christian leader to be abducted in Syria, after not returning from 'consultations' with Nusra Front leader.
Rebels Launch Offensive to Capture Syria's Largest CityNew Islamist alliance 'Ansar al-Sharia,' which includes Al Qaeda's Nusra Front, seeks key victory as regime struggles to hold positions.
Norwegian Posed with Guns in Syria for 'Humanitarian Work'Norway looking to sentence jihadist who fought for ISIS and Al Qaeda - he claims he was in Syria for 'humanitarian' efforts.
Al Qaeda Apologizes for Murdering 20 DruzeSyrian affiliate of terror group says shootout committed against Druze village under its hold 'violates our views.'
First Time: US-Led Airstrikes Aid Syrian Rebels against ISISCoalition aircraft hit Islamic State forces battling Syrian rebels including Al Qaeda's Nusra Front.
Rebels, Al Qaeda Advance on Regime in Northwest SyriaSyrian NGO points once again to rebel pushback as Assad's army falls in Muhambel.
Al Qaeda Captures Last Syrian Regime City in IdlibRebel coalition begins lightning conquest of last city in Idlib province on Turkish border still held by government.
Al Qaeda is Moderate? The West Isn't Buying ItNusra Front chief's rare TV interview meant to convince the West his group is a legitimate political actor in Syria - anyone believe him?
Al Qaeda Conquers Regime-Held Hospital HoldoutAfter days of intense fighting Nusra Front captures hospital where senior troops and bureaucrats were holed up.
Al Qaeda-Led Rebels Seize Last Military Base in Syria's IdlibAl-Mastumah falls after regime forces retreat in face of advancing Islamist rebels; Idlib now almost entirely under rebel control.
Bloodbath as Syrian Rebels Storm Regime-Held HospitalAt least 72 killed in one day as Assad regime loyalists barricaded in hospital fight last-ditch battle against rebel assault.
Game Over? Syrian Rebels Storm Besieged Regime LoyalistsRebels led by Al Qaeda's Nusra Front storm hospital in Jisr al-Shughur, where some 250 regime soldiers and their families holed up.
Syrian Regime Forces Battle to Free Trapped SoldiersHezbollah making steady gains in Qalamoun, as regime forces fight to free 250 soldiers trapped in rebel-held Jisr al-Shughur.
Syrian Rebels, Hezbollah in Fierce Clashes Near LebanonAl Qaeda's Nusra Front leads preemptive offensive against pro-regime forces, including Hezbollah, in Qalamoun mountains.
Regime Troops Trapped in Hospital as Syrian Rebels AdvanceAl-Qaeda affiliate keeps gaining ground on Syrian army, as regime has lost almost entire province bordering Turkey.
Jihad on the Horizon: Al Qaeda, ISIS Clash Along Israeli BorderNusra Front joins other rebel factions fighting ISIS-linked Jaish al-Jihad battalion in Golan Heights; follows mortar fire into Israel.
Assad Regime Collapsing? Rebels Score Another Key VictoryHeavy weapons seized in Idlib's Al-Qarmid base, as Al Qaeda-led Islamist 'Army of Conquest' continues to make gains in the north.
Abbas Negotiates Release of Swedish Missionaries from Al QaedaSweden thanks Abbas for 'personally' negotiating the release of two Christian hostages captured by Nusra Front in Jordan.
Syria: Al Qaeda, Allies, Take Key Regime StrongholdJihadists seize Jisr al-Shughur, last major city under regime control in Idlib; now closer than ever to regime heartland Latakia.
Ohio Man's Al-Qaeda Attack on US Soil FoiledAbdirahman Sheik Mohamud charged for training with Nusra Front in Syria before returning to try and launch an attack in the US.
Rebels in Southern Syria Split with Al Qaeda after TensionsSouthern Front announces it is severing ties with Nusra Front after dispute over border crossing; 'We don't want to be a base for jihad.'
Palestinian Camp in Lebanon a Breeding Ground for JihadistsLebanon's Ain al-Helweh camp causing growing concern, as even official Palestinian 'security forces' fear to enter.
Al Qaeda, Allies Advance on Key Syrian Military BaseIslamist rebels including Nusra Front launch attack on Mastuma base in Idlib one week after capturing provincial capital.
Al-Qaeda Conquers Syrian Provincial Capital of IdlibSyrian affiliate Nusra Front paves way for 'emirate' to rival ISIS's Raqa 'caliphate' headquarters; only second capital to fall.
Syria: Islamist Rebels Advance in Fierce Clashes for IdlibIslamist alliance led by Al Qaeda's Nusra Front makes gains in Idlib city; regime airstrikes attempt to blunten advance.
Syrian Al-Qaeda Beating Obama's 'Moderate' RebelsNusra Front has been seizing American weapons while pushing back FSA, and is posed to establish emirates in northern Syria.
40 Killed as Kurds Battle ISIS for Key Syrian TownKurdish fighters repel Islamic State offensive in Hasakeh, as Al Qaeda's Nusra Front battles regime in Aleppo.
Syria: Collapse of Moderate Rebel Group Deals Blow to US HopesHarakat Hazm - first Syrian rebel group to receive US TOW anti-tank missiles - disbands after defeat to Al Qaeda. Weapons seized.
New Al Qaeda Video Shows Steady Advance along Israeli BorderSyrian Nusra Front rebel group releases slick new video, in attempt to take back the initiative from rival ISIS in the propaganda war.
Wary of Intel Leaks, Jihadists Scaling Back Social Media UseISIS, Nusra Front recruits concerned intelligence agencies gleaning crucial data from Facebook to use against them, pinpoint locations.
Al Qaeda Takes Major Syrian Military BaseNusra Front cements control of Idlib countryside, highlighting dominance of jihadis in Syrian civil war.
Watch: Rival Syrian Rebels Clash over War BootyFree Syrian Army fighters livid after Al Qaeda-affiliated Nusra Front steals their spoils of war.
Hezbollah and Al Qaeda-Branch Argue Over Circumstances of ClashHezbollah updates toll to eight dead from clash with Nusra Front terrorists - who claim Hezbollah actually attacked them.
Mavi Marmara 'Peace Activist' Killed in US AirstrikeTurkish IHH activist who took part in infamous Gaza flotilla killed in Syria airstrike; reports say he was fighting with Al Qaeda.
Syrian Rebels Kill Three Hezbollah Terrorists in LebanonDay after ISIS and Al Qaeda-linked rebels kill three Lebanese soldiers, Hezbollah targeted in suicide bombing.