Islamic State (ISIS) terrorists have released a fourth propaganda video showing abducted British journalist John Cantlie delivering a message under duress, the Guardian reported on Sunday.

In the 6 minute 53 second video, posted online by the group’s Al Furqan media outlet, Cantlie, who has been held prisoner for almost two years, said Islamic State was “dug in for the fight”.

Wearing an orange jumpsuit, Cantlie, 43, warned that “what that means is that anyone hoping for a nice neat surgical operation without getting their hands dirty is in for a horrible surprise once it gets underway.”

The freelance photojournalist, who has worked for various newspapers including the Sunday Times, added that the violent beheading videos released by ISIS “were a win win” for the group.

“If these executions force public outcry or a policy change, that is a huge victory. And If they only goad our governments into dropping more bombs and spending millions more dollars, making our countries weaker in the process, that is a victory too,” he said, according to the Guardian.

Cantlie said that it was conceivable that ISIS foreign fighters could return to their home countries and carry out attacks, an issue of concern for several countries in Europe and North America.

The previous video of Cantlie was released by ISIS at the end of September. In it, the abducted journalist delivered a scripted propaganda attack against U.S. President Barack Obama’s strategy in Iraq and Syria.

Cantlie was first paraded in front of the cameras two weeks ago, promising a series of videos giving the real story of IS.

It was the first that had been heard from him since he was captured inside Syria close to the border with Turkey towards the end of 2012.

ISIS has released several videos depicting hostages it has taken. It has released videos showing, among others, the execution of the American journalists James Foley and Steven Sotloff, as well as a video showing the murder of David Haines, a British aid worker.