AP•IG

FREE now and never miss the top politics stories again. SUBSCRIBE Invalid email Sign up fornow and never miss the top politics stories again. We will use your email address only for sending you newsletters. Please see our Privacy Notice for details of your data protection rights.

Western and more recently Russian airstrikes, chaotic leadership and mass defections have weakened the jihadi group to such an extent that it would be unable to repel even a small invasion force. A terror analyst told Express.co.uk that the fanatics have vastly exaggerated their military strength and called on Western leaders to launch a co-ordinated fightback which would obliterate the hate group. Dr Afzal Ashraf said ISIS has become its own worst enemy with its campaign of terror against the West, which has prompted an international backlash.

A US-led coalition including Britain has launched airstrikes against the extremist group which have killed thousands of its fighters after being outraged by its barbarity. And Dr Ashraf said that another atrocity on the scale of this summer's Tunisia beach massacre could result in boots on the ground and an end to ISIS' evil grip on power.

AP ISIS has been significantly weakened by airstrikes

AP The Kurdish Peshmerga have been driving ISIS back in northern Iraq

AP An abandoned ISIS outpost which was overrun by Kurdish forces

He said: "This mythical state will disappear in a matter of hours once the international community decides to act. "It won't take very long at all to drive them, if not out of all of Iraq or Syria, then certainly the majority of their territories. "They will hide in towns, but I would say do not to follow them as they would use innocent civilians as human shields. "Leave them in these isolated settlements and they will soon lose control."

AP ISIS has reportedly lost half of its fighters

AP Footage from a Russian drone showing the destruction of an ISIS headquarters

AP Smoke billows from an ISIS building after an airstrike

This mythical state will disappear in a matter of hours once the international community decides to act Dr Afzal Ashraf

Last month it emerged that half of the group's fighters have now been killed, whilst others are deserting en masse after their salaries were slashed. Dr Ashraf, a researcher at the respected Royal United Services Institute (RUSI) think tank, added that assessments of ISIS' military capabilities have been vastly overplayed. He said: "They have built up this superhero status because of the way the Iraqi army just fell apart when they confronted it. But that was not very much to do with their ability to fight, it was to do with the Iraqi army, which just doesn't have a leadership that inspires. Once you've got a General running off you don't expect the soldiers to stand and fight. "As a result, they have given the impression that they are far more capable than they are. If we had serious forces fighting in a coordinated battle against these people they wouldn't last very long at all."

AP A terror expert said ISIS' fearsome reputation on the battlefield is unwarranted

AP ISIS' advance has stalled after its initial gains

AP Dr Afzal Ashraf said ISIS' Caliphate could fall within hours of an assault

His comments came as it emerged that ISIS is now indirectly inspiring far more terror plots abroad than it is carrying out itself. Research by the Henry Jackson Society showed that the jihadis have been involved in the planning of just one Islamist attack in the last 14 months. Instead, three quarters of those plotting atrocities in the group's name are inspired by online videos and had never had any contact with its fighters. But Dr Ashraf said ISIS' strategy of promoting 'lone wolf' attacks will turn out to be its biggest blunder yet.

He said: "Late last summer when ISIS came under attack from Western forces it started to lash out, first through beheadings of Western hostages. "The reason we've seen a fall in beheadings since then is because they achieved nothing. ISIS had a lot of demands and they never succeeded in those demands. "Instead they are now encouraging attacks in other countries, but their actions both in terms of inspiring these attacks and in causing a refugee crisis have taken the heat off Syrian dictator Bashar al-Assad and have put the focus of the main threat onto them.

"What's happening with these attacks, particularly the Tunisia attack, is that the British government has now taken an increasingly more assertive and aggressive role in the fight against them. "ISIS has now achieved itself through its own actions what many politicians and people failed to do, and that's to galvanise the international community against it."

The fight against ISIS Fri, November 18, 2016 The battle against ISIS militants (also abbreviated as Daesh, ISIL, IS and Islamic State) continues in the Middle East. Play slideshow Getty 1 of 183 Forces battle against ISIS