A one-legged ISIS fighter with an American accent has condemned President Donald Trump and called on Muslims to take advantage of the gun laws in the US to carry out attacks.

The fighter appeared in a propaganda video released on Wednesday saying Trump's war on Islam was making the US more vulnerable to terror attacks and would help fuel support globally.

Using the name Abu Salih al-Amriki, the fighter wore khaki fatigues and had a gun strapped to him as he condemned President Trump for playing up a clash of civilizations.

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The fighter, who had an American accent, appeared in a propaganda video released on Wednesday saying Trump's war on Islam was making the US more vulnerable to terror attacks

'You entered into the White House on the back of your crusader rhetoric, which the fake media has pressured you to tone down,' he said in the video, speaking in what sounded like a New York City-area accent.

'Your feelings and hatred towards Islam has already been revealed… you are now witnessing your fake victory.

'Your war against Islam has only made your homeland more vulnerable and your society is cracking into chaos.'

He referred to President Trump as a 'dog of Rome.'

Using the name Abu Salih al-Amriki, the fighter was shown in the video attaching his prosthetic leg and using crutches to walk through ruins

The fighter, who had a gun strapped to him, condemned President Donald Trump and called on Muslims to take advantage of the gun laws in the US to carry out attacks

The fighter was shown in the video attaching his prosthetic leg and using crutches to walk through ruins.

'Take advantage of the fact that you can easily obtain a rifle or a pistol in America,' he said as he called on ISIS fighters to carry out attacks.

'Spray the kuffar [infidels] with bullets so that their fear of the Muslims rises and they continue to reveal their hatred towards Islam.'

The identity of the man was not immediately known.

The FBI would not comment following the release of the video.

Indeed, Homeland Security and domestic law enforcement have long feared that terrorists could abuse the Second Amendment and easily acquire powerful assault rifles and handguns to carry out attacks.

Indeed, last week, the outgoing director of the National Counterterrorism Center, Nicholas Rasmussen said that US gun laws could enable huge shooting sprees carried out by radicalized Muslims.

'We find ourselves in a more dangerous situation because our population of violent extremists has no difficulty gaining access to weapons that are quite lethal,' said Rasmussen. 'I wish that weren't so.'

The video of the man pertaining to be Abu Salih is another of the tightly-produced propaganda videos released by ISIS called 'Inside the Caliphate'.

They have featured beheadings carried out by ISIS soldiers and calls for attacks across the Western world.

The videos have been filmed and distributed online by ISIS' al-Hayat Media Center and the terror organization's web-mag Rumiyah is published in several languages and both are vociferous in their demands for atrocities.