The World Trade Center burns after being hit by planes in New York Sept. 11, 2001.
Reuters/Sara K. Schwittek
An unprecedented onslaught from the US hasn't destroyed the terrorist organization. What is the secret of its resilience?
Iraqis carry the picture of three men who were kidnapped and executed by Islamic State during a funeral procession in Karbala, southern Iraq, in June 2018.
The wars against Islamic State and al-Qaida show that military responses may seem to work in the short term but don’t change much in the long run.
Detachment 88 forces conducting a raid in Indonesia in 2016.
Trained and funded by Australia and the US, Detachment 88 is winning the fight against terrorism in Indonesia, though not without some controversy and continued challenges.
Anti-terror police guard the house of the family that detonated bombs in Surabaya, Indonesia, May 15 2018.
To prevent people from climbing the staircase to terrorism, educating people about the values of tolerance should start early.
Indonesian police officers carry body bags at the scene of a bomb blast in front of a church in Surabaya, East Java, Indonesia, 13 May 2018.
The attacks show not only a shift in women's roles in violent extremism, but also the involvement of families in acts of terror.
Videos serving up jihadi content are being targeted by the Home Office.
Machine learning isn't reliable enough yet – and it's short-sighted to only train this detection tech on jihadi content.
Members of the Iraqi police forces sit outside a building in the city of Fallujah on June 30, 2016 after they’ve recaptured the city from Islamic State (IS) group jihadists.
Was the early conception of IS a branching-out of the old Baath party? Or was it, as some argue, completely separate with no connection at all? Reality is probably a bit of a mix of both.
Mubin Shaikh, a Toronto-born de-radicalization expert, speaks during a counter-terrorism event in Germany in May 2015.
No country is immune to terrorism, but de-radicalizing people who have been attracted to terrorist organizations like ISIS can work.
ISIS has been using fantastical propaganda on social media that describes the Islamic State as a land that is full of happiness to recruit supporters.
ISIS may have lost most of their territory, but it's important to be aware that ISIS can still utilise the Internet and social media to recruit people and to spread their fantastical propaganda.
Wes Mountain/The Conversation
Raffaello Pantucci explains what lone-actor terrorism is, why it's effective and why we seem to be seeing more attacks that aren't clearly connected to terror networks in this long-form comic explainer.
A nine-year-old boy plays on his damaged street in Mosul, Iraq in this July 2017 photo. U.S.-backed forces have wrested Mosul from the Islamic State, and the terrorist group lost Raqqa, in northern Syria, last month. Nonetheless the Islamic State is using virtual information sessions to keep its members committed to the cause.
(AP Photo/Felipe Dana)
Despite the fact that the Islamic State is on the run, the terrorist group still manages to inspire, motivate and maintain the social identity and cohesion of its members. Here's how.
A US army team carry the remains of Sgt. Dustin Wright, one of the soldiers killed in Niger.
Reuters/Aaron J. Jenne/US Air Force
If the US, simply focuses on trying to hunt down jihadist leaders in Niger it will be missing an opportunity to address the underlying causes of violence in the region.
Is religion inherently violent? Some believe so, but secular individuals and institutions have proven to be just as violent.
Many think that violence is central to religion, but some scholars argue it's meaningless to single out religion rather than socio-economic factors when assessing violent acts.
Police investigate the scene where a car crashed into a roadblock during a suspected terrorist attack in Edmonton on Sept. 30.
(THE CANADIAN PRESS/Jason Franson)
The recent Edmonton attack raises questions about a new type of terrorism and the different methods required to stop it. Labelling such attacks as the work of a "lone wolf" obscures a larger problem.
The UK foreign secretary has been talking up the merits of clearing away bodies to build a new Dubai on the Libyan Med.
Though British officials have foiled far more terrorist plots than they’ve missed, the United Kingdom is on edge after its fifth terrorist attack this year alone.
The September 15 London train bombing that injured 30 was the UK's fifth terror attack this year. A security expert looks at why Europe has been seeing more frequent and bloodier jihadist assaults.
A makeshift memorial to the victims of the terrorist attack in Barcelona. Police killed five men August 18 believed to have been involved.
AP Photo/Manu Fernandez
With terrorists striking again in Spain and in Finland, one cannot help but ask -- again -- why people want to follow the Islamic State. Some new theories are emerging.
Abu Bakr al-Baghdadi, painted portrait.
After a major defeat in Mosul, Islamic State seems to have suffered a blow that could end its goal of establishing a cross-border caliphate in the Middle East.
Supporters of Jakarta’s former Governor Basuki ‘Ahok’ Tjahaja Purnama.
AP Photo/Dita Alangkara
An expert on Islam and democracy examines the threat to the world's largest Muslim majority country.
A bus displaying the Pak-China friendship sign, along a road in Karachi, Pakistan.
Are Chinese lives the price to pay for doing business in Pakistan?