Sniper Alan Duncan fighting ISIS says terrorism 'inevitable' as they lose ground in Middle East
Alan Duncan, 49, has volunteered on the Iraqi frontline with the Kurdish Peshmerga for the past three years and says Western airstrikes are taking their toll on ISIS.
In addition to airstrikes, long ground campaigns are wearing down Jihadi forces and are leaving the group "spent".
But the former British army soldier from Elgin, Moray, thinks the battle against ISIS has also got to be fought online to prevent further domestic terrorism.
I have seen people run through minefields to escape ISIS
ISIS sympathisers no longer physically travel to fight in Iraq and Syria but instead stay at home to plot attacks such as those in Manchester and London.
At its height, the group controlled large areas in the Middle East, including the second largest city in Iraq – Mosul – which the Iraqi army are now close to regaining.
Mr Duncan had previously served with the Royal Irish and Queen's Own Highlanders regiments after signing up at the age of only 16.
Duncan volunteered on the Iraqi frontline with the Kurdish Peshmerga to fight ISIS
The farmer's son was a marksman and deploying in Northern Ireland and Iraq during the Gulf War and left the army in 2002 having served for 13 years.
The father-of-one also used to be a double-glazing salesman in Elgin, Moray, but now volunteers on the front line in the Middle East.
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Mr Duncan praised the RAF drone strike which killed Aberdeen-born jihadi Abdul Rakib Amin in September 2015 – saying failure to act could have led to a massacre.
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He said: "If that strike wasn't done then he could have come back to Aberdeen and committed another London or Manchester.
"I've fought these people first hand, I have seen people run through minefields to escape ISIS, it is only because of the airstrikes that hundreds of thousands of people have been freed from their control.
"I have been warning people for two years that it was only a matter of time until they hit Britain and I'm afraid to say it's only going to happen more because more are coming into Europe. It's inevitable.
"Isis warned Europe that they would smuggle in fighters with the refugees and that's what they have done."
Mr Duncan had previously served with the Royal Irish and Queen's Own Highlanders regiments
He plans on going back to Kurdistan to rejoin the fight and funds his involvement through online donations.
The Peshmerga provide him with food, cigarettes and shelter while he is serving with them.
He was sent death threats online in 2015 and felt he was forced to flee his family home for their safety.
And he says that there has not been a threat to civilisation as bad as ISIS since the Nazi party.
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He added: "They use our laws on freedom to hide behind and organise attacks like London and Manchester.
"We have to wise up because at the moment there are too many people blaming the government and security forces when they should be blaming Isis.
"The security services have stopped many attacks but now they need new powers. If you haven't done anything then you have nothing to fear as far as I'm concerned.
"We have not faced a threat like this since the Nazis, it's a global problem and we have to use all we have to fight it."