Combat, riots and revolution, plus the weapons and warcraft that fuel them.
Meet NATO’s man in Moscow
Robert Pszczel: ‘Sometimes I take a little pill before going on to stabilize my blood pressure.’
Jihadi John was radicalized by MI5 tactics, some Brits say
Details about Londoner Mohammed Emwazi are raising uncomfortable questions as much about terror suspects as the way the UK intelligence agency pursues them.
Pakistani police arrest more than 450 parents for refusing polio vaccine
Pakistan is one of only three countries in the world where polio remains endemic.
Why the Kremlin has jailed Ukrainian pilot Nadiya Savchenko
Analysis: Savchenko is as much a symbol for Russian officials as she is for Ukraine.
Islamic State militants attack Iraqi city of Samarra ahead of army offensive
Medical sources said Samarra hospital received the bodies of 14 Shia militia fighters and policemen.
Russian opposition mourns murdered leader Boris Nemtsov
A former deputy prime minister, Nemtsov was the most prominent opposition figure killed in Russian President Vladimir Putin's 15-year rule.
Mexico captures most wanted drug lord Servando 'La Tuta' Gomez
Since the Mexican government began a military crackdown in 2007 on drug gangs, more than 100,000 people have been killed in drug-related violence.
Deaths of 3 servicemen shake Ukraine's fragile truce
Kyiv says it fears pro-Moscow rebels could be regrouping and preparing to attack Mariupol on the Sea of Azov.
Islamic State is just the latest radical group to destroy ancient art
From the Khmer Rouge in Cambodia to the Taliban in Afghanistan, numerous movements have destroyed and stolen historic artifacts.
Before 'Jihadi John,' Mohammed Emwazi was 'extremely gentle, soft-spoken'
After the naming of Islamic State's masked henchman, his alleged extreme violence gives an urgent note to the efforts to understand who he is and where he came from.
For richer, for poorer: Jihadi John is a reminder that extremism comes in all shapes and sizes
Analysis: The White House's focus on poverty as the main cause of extremism may not tell the whole story.
Here's why the UK is sending troops to Ukraine after the ceasefire
A scathing report from the House of Lords accused Britain and other EU members of 'sleep-walking into the current crisis.'
Military judge won’t halt the trial of USS Cole terror suspect
An order forcing judges to live in Guantanamo, however, will delay the 9/11 case of Khalid Sheik Mohammed.
US charges 3 with conspiring to support Islamic State, planning attacks
All three men live in Brooklyn in New York City.
Islamic State militants seize 100 Iraqi tribesmen before battle for Tikrit
Iraq's military said around 2,000 Shia militia fighters had arrived near Tikrit in preparation for a major operation against Islamic State.
Concerns over 'unlawful influence' are holding up the trial of alleged USS Cole bomber
The military judge in the trial said hearings will not move forward until he determines whether a senior Pentagon official was unlawfully involved in the trial proceedings.
Egyptians mock the Islamic State on Twitter
Italians joined in too.
Islamic State in Syria abducts at least 90 from Christian villages: monitor
Military experts following Syria said IS was trying to open a new front after its string of losses since being driven from the Syrian town of Kobani.
Efforts to speed up a Guantanamo detainee trial may actually slow it down
Abd al-Rahim Al-Nashiri is one of five high-level detainees identified as having been subject to torture like waterboarding and rectal feeding.
Syrians slowly return to Kobani after Kurds win back town from Islamic State
Almost the entire population of the town fled across the border to Turkey last year to escape Islamic State's advance.
Kobani residents in limbo as they wait to return to a destroyed city
The Islamic State was repelled from the city weeks ago, but residents have been unable to return home.
Hear from Egypt’s young revolutionaries behind bars
In their own words.
Kyiv points finger at Russia after two killed in blast
Kyiv said it had arrested suspects who had been armed and instructed in Russia.
Come home, families beg Syria-bound UK schoolgirls
The three girls flew to Istanbul on a Turkish Airlines flight from London's Gatwick airport.
Ukraine army, pro-Russian rebels swap prisoners under tattered truce
The swap was in rare compliance with a truce so badly breached that the US warned it could escalate sanctions on Russia within days.
Yemen's former leader leaves Sanaa after house arrest
Abd-Rabbu Mansour Hadi is reported to have fled his residence in disguise.
Police who killed protesters at Ukraine's Maidan are still free
Ukrainians are commemorating more than 100 people killed in clashes between police and protesters.
Joining the Islamic State is still remarkably easy
Analysis: Despite efforts by Turkish authorities to crack down on wannabe jihadists crossing into Syria, the number of foreign fighters continues to grow.
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.