Prime Minister John Key says New Zealand could not follow suit if Australia moves to strip a New Zealand-Australian woman of citizenship to prevent her returning from Syria.

US Defence Secretary Carter warned that Iraqi troops would not be able to defeat Isis until they developed a "will to fight", reflecting surprise after the collapse in Ramadi.

Isis has used its propaganda magazine Dabiq to suggest the group is expanding so rapidly it could buy its first nuclear weapon within a year.

Shia militia groups have converged on the Iraqi city of Ramadi to help wrest it back from Isis (Islamic State) fighters, who seized it in a three-day blitz.

Three British teenage girls were reported to be on the run from Isis raising fears it might be the London schoolgirls who fled there earlier this year.

The Australian doctor who fled to Syria to join ISIS has hit out at claims he was brainwashed into making the move in an open letter.

A NZ refugee with 24 children who was killed in Iraq has been accused of disrespecting his adopted country by New Zealand First leader Winston Peters.

An Australian doctor branded the "new face" of Isis tried to get into medical school in New Zealand, but failed after a year and left the country.

A young Isis doctor identified as Tareq Kamleh has been revealed to be an Australian doctor who trained in Adelaide.

Up to 25 New Zealanders want to travel to the Middle East to fight against Isis, local Iraqi and Kurdish leaders say.

One of slain Iraqi New Zealander Kadhem Chilab Abbas's 24 children fears other family members will be next to die as they try to take revenge.

Mohammed Emwazi, known as "Jihadi John", gave up an earlier plan to join al-Shabaab in Somalia.

Prime Minister John Key says the SIS has talked would-be jihadists in New Zealand out of joining Isis after their parents approached authorities.

A shocking new video appearing to show at least 30 Christians being beheaded and shot by Isis in Libya has been released.

Yazidi girls - some as young as 8 - were raped by jihadists then sold, says a report issued yesterday.

A 9-year-old girl who was taken as a sex slave by Isis was raped by 10 militants and is now pregnant, it has been reported.

Yazidi women released by Isis this week have given distressing accounts of their ordeals.

Mass graves containing the bodies of 1700 Iraqi military cadets killed by Isis are being opened - TV clips showing skeletal remains still wearing combat boots.

Islamic State militants in the northern Syrian province of Raqqa have threatened to jail any young man wearing skinny jeans, smoking or with music on his mobile phone.

Defence Minister Gerry Brownlee has confirmed that legal protection has been secured for New Zealand troops to fight in Iraq against the Islamic State.

The photograph is just one example of the propaganda images being shared by women living in Isis-controlled territory, many more of which have been compiled by Ellie Hall of Buzzfeed.

Isis has published a 'kill list' containing the names, photos and addresses of 100 US military members online.

Once the stronghold of Muammar Gaddafi, the coastal town of Sirte has now been transformed into a symbol of the insidious rise of the self-proclaimed Islamic State in Libya.

The Independent investigates how Isis jihadis govern every aspect of life within the territories they control.

'The scenes terrified me': Meet the former jihadi who deserted Isis rather than take part in executions, beheadings and rape.

Three teenagers have returned to UK after being detained in Turkey suspected of travelling to join Isis

The IS terror group has vowed to blow up world-famous landmarks such as Big Ben, Eiffel Tower and the White House in an audio broadcast.