Attacks in Austria and France mean that the UK is also on high alert.
The children of Canadians who have left to join the Islamic State are the subject of a fierce debate about Canada's obligation to their repatriation.
President Trump has claimed the Islamic State was completely defeated on his watch – but an analysis of government maps and other reports shows his administration did only half the work.
The need for security agencies and the media to view and present Islam and Muslims as constant potential threats feeds into a dangerously violent and deadly Islamophobia.
Global terrorism has been relatively quiet as the world is consumed by the COVID-19 pandemic. But it is still there, unabated, and we need to do more to stop it.
Nigeria must eschew nepotism and ethnic or religious sentiments in the war against terror.
A legal expert analyses the significance of a Court Appeal ruling allowing Shamima Begum to return to the UK from Syria to fight an appeal against the removal of her British citizenship.
The Islamic State is asking its followers to worsen the global pandemic, and its fighters are celebrating the toll disease and racism are taking on US society.
Seven striking similarities between developments regarding Islamic State today and the period before its surge in 2013-14.
To stem the spread of COVID-19, Turkey is releasing 90,000 prison inmates. Not on the list for release: tens of thousands of academics, journalists and others the regime sees as political threats.
Criminal gangs, insurgents and terrorist groups seek to protect the people in the areas they govern, when a central government's power is weak or nonexistent.
A more robust strategy is needed to manage terrorism funding, especially fund-raising by returning terrorist fighters.
The Pentagon has spent more than $800 billion on military operations in Iraq. But that doesn't include money needed to care for veterans, rebuild the country or pay interest on war debt.
The Islamic State group, often called ISIS, is not just based in Iraq and Syria. A scholar tracks where the group and its affiliates have spread around the globe.
Declining US involvement in The Horn would leave a vacuum that others can fill.
Families of those at risk of extremism need to be supported, not judged.
Interviews with the Yazidi survivors of IS attacks that killed 3,100 people in 2014 reveal the emotional, cultural and spiritual scars of religious persecution.
Distrust of the US – even if misplaced – can linger for decades, thwarting Washington’s foreign policy goals. A former US diplomat in Iraq reflects on that country's skepticism of US aid efforts.
The Morrison government has shown no enthusiasm for repatriating the family members of IS fighters. But as other nations bring back their own fighters, Australia may find itself forced to act.
The Islamic State has appointed yet another 'caliph' after the death of Abu Bakr al-Baghdadi. What is the idea behind the caliphate?