David Petraeus was interviewed at a Liberal Party dinner in Sydney on Friday.
David Petraeus argued there's more continuity than change in Donald Trump's foreign policy.
Anjem Choudray, one of the leaders of the group, who is now in prison.
Stefan Rousseau/PA Archive
One of the London Bridge attackers was linked to the extremist group.
The skyline of Doha, Qatar.
Gregory Hawken Kramer
Qatar has used its wealth to adopt policies sometimes rivaling Saudi Arabia’s. Think, for example, of the popular Al-Jazeera. Now the Saudis seem determined to limit Qatari influence as much as possible.
When it comes to Islamist extremism and terrorism, change is a constant.
From the Islamic State to North Caucasian rebels and far-right nationalists, Russia is facing overlapping extremist threats.
The aftermath of a bomb strike at a refugee camp in Rann, Nigeria.
The Nigerian government has dealt Boko Haram some serious blows, but the insurgency is far from over.
Special units: not a good idea.
Anthony Devlin / PA Wire
Prisoners become more dangerous when grouped together.
President Buhari meets with a woman rescued from Boko Haram.
Muhammadu Buhari rode into power on a wave of goodwill – but Nigeria's troubles just won't go away.
The US seems stuck in War-on-Terror mode even though reality has moved on.
Anjem Choudary: awaiting sentence.
Hannah McKay / PA Archive
The Islamist ideologue will be closely monitored, but is unlikely to cooperate with prison de-radicalisation initiatives.
Boko Haram is still outpacing the Nigerian authorities.
The deadly Islamist group Boko Haram has lost ground and split into factions, but it's far from beaten.
A pastoralist refugee in Cameroon.
The marked increase in the number of Nigerian pastoralists fleeing Boko Haram terror in northeastern Nigeria last year reflects a trend that started three years ago.
Not everyone is impressed.
At first, it seems like IS has an image perfect for driving recruitment – but in fact, its image has very limited appeal.
Police in Dhaka hold back protesters furious at the murder of a student.
Bangladesh's sexual minorities have been under violent attack for some time – as has anyone standing up to the country's extremists.
Clashes over the building of a mosque in Bendigo are a reminder of how easily strong public feelings about immigration can be exploited.
Australians need to have a broad conversation about immigration. This must go beyond border security to discuss immigration's broad functions, social impacts and the national interests it serves.
Brussels remains on high alert as raids continue.
Christophe Petit Tesson/EPA
The road to radicalisation can morph from an idea about noble deeds.
Shattered windows at Brussels international airport.
Scholars specializing in extremism are beginning to unravel how people -- including a higher number of Americans than one might expect -- become radicalized to embrace political violence.
A new look.
Indonesia has both the world's largest Muslim population and a vibrant young democracy.
Fear is not the answer.
IS has claimed a wave of deadly bombings and shootings in Jakarta, but its long-feared Asian campaign is yet to materialise in earnest.
Military forces outside the Radisson Blu hotel in Bamako where hostages were taken.
The hostage situation at a hotel in the Malian capital Bamako comes after months of sporadic violence.