Combat, riots and revolution, plus the weapons and warcraft that fuel them.
How strong is the Islamic State in Libya?
The group has benefited from the chaos of Libya's unraveling, taking control of towns and attracting recruits.
Obama says world needs to address the problems that fuel terrorism
In counterterrorism speech, the American president said extremism builds when millions are left impoverished.
Some of Europe’s Jews might take Netanyahu up on his offer of a new home
Others doubt that flight to Israel is the answer to anti-Semitism in the EU.
Add the Islamic State in Libya to the growing list of obstacles for Europe-bound refugees
Propaganda urges fighters to pose as migrants to cause 'pandemonium' in Europe.
Cheering for the Islamic State on Facebook can get you jailed in the UK
In the US material support for terrorism is banned. But in Britain, even social media posts and T-shirts can be foul play.
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The mass beheading of 21 Egyptians in Libya shows the spread of the Islamic State franchise
Analysis: Militants from far and wide are declaring allegiance to the group as it seeks to spread jihad across the region.
Why Ukraine's ceasefire is falling apart in Debaltseve
The violence in this strategic city has been so bad it's driven the prewar population of 25,000 to about 3,000.
Egypt bombs Islamic State targets in Libya after beheadings
Taking a page from Jordan, Egypt quickly retaliated for the beheading of 21 Egyptian Christians.
Ukraine rebels disavow ceasefire at encircled town
Pro-Russian rebels announced they would not observe the truce at Debaltseve, where Ukrainian army forces were encircled.
Ukraine ceasefire begins after fierce fighting in besieged town
Fighting raged until the last minute and Kyiv and the US accused Russia of fueling a final push by rebels to gain territory.
Ukraine fighting rages ahead of ceasefire
Kyiv and the US accused Russia of fueling a rebel onslaught to grab territory hours before the truce began.
US reconstruction aid for Afghanistan is focused on weapons; much is siphoned off by corruption
Commentary: There are billions unaccounted for.
Ukraine’s new peace deal: The good, the bad, the ugly
Analysis: Here's a look at the fine print of another ceasefire agreed to by world leaders in Minsk.
Read the full text of Obama's war authorization request to Congress
He's asking Congress to approve ongoing military action against the Islamic State.
Ukraine is not technically at war
But it might be soon.
Greece and Ukraine have something in common: They could both sink the euro zone
Diplomatic efforts over the next few days could decide the fate of the economic bloc.
Life under drones — in victims’ own words
‘I no longer love blue skies. In fact, I now prefer grey skies.’
Free speech or treason? Welcome to Ukraine’s information war
Controversial journalist Ruslan Kotsaba called on fellow Ukrainians not to go to battle. Now he's under arrest accused of treason and spying.
A massive blast lights up a rebel stronghold in Ukraine (VIDEO)
Neither the Ukrainian authorities nor pro-Russian separatists know exactly how it happened.
Nigeria postpones Feb. 14 presidential election to March 28
The postponement could stoke unrest in opposition strongholds.
West presses Putin to back 'last-chance' Ukraine peace bid
Western leaders challenged Russian President Vladimir Putin Saturday to prove he wants peace in Ukraine.
As Baghdad lifts curfew, bombs are reminder of country at war
Five blasts across Baghdad on Saturday tempered Iraqis' anticipation of a more relaxed and accessible capital.
Europe and US clash over how to confront Putin on Ukraine
On Saturday, Germany's Angela Merkel warned against sending arms to help Ukraine fight pro-Russian separatists.
After a series of defeats, the Islamic State resorts to shock tactics
Analysis: As the group loses ground in Syria in Iraq, it is forced to resort to increasingly theatrical brutality to burnish an image of strength.
Jordan hangs two Iraqi militants as revenge against the Islamic State
The executions were a response to the killing of an imprisoned Jordanian fighter pilot.
Obama's new budget proposes more spending for nuclear armaments
Warhead spending alone would grow faster than the overall military budget.
Every Islamic State execution is a public spectacle. But you'll never see most of them
Analysis: For every high-profile hostage who has been murdered by IS in front of an HD camera, hundreds of other victims in Syria and Iraq have been executed, too.
WFP 'extremely concerned' by pictures of IS logos on its Syria food parcels
The United Nations World Food Program said that in September Islamic State raided Red Crescent warehouses where food rations may have been stored.
The Islamic State beheadings are firing up Japan’s hawks
Despite a pacifist constitution, Prime Minister Abe is demanding a more aggressive response to the terrorists, and a stronger Japan.
Pilot held by Islamic State puts Jordan's king in a tough spot
King Abdullah has defended the US-led campaign against the hardline group in Syria, saying moderate Muslims must take a stand.