New knife-wielding 'Jihadi Junior' appears in disturbing ISIS beheading video

The footage contains dramatisations of the medieval Crusade wars and footage showing landscape strewn with rubble.

But in the second half of the footage a youngster, who appears no older than 13, can be seen escorting a hostage through a wooded area and into a clearing.

He speaks poorly pronounced English and points the dagger down the lens of the camera while Arabic music plays in the background.

The boy grabs the hostage – who is seen speaking Arabic in a dark room earlier in the video – by the collar of his orange jumpsuit.

The child says: "Oh America, these are the soldiers you armed and you spent money on to fight the Sharia of Allah."

He later adds: "You can’t escape.”

And: "I wish to meet you on the hills of Dabiq".

The chilling video concludes with the kid taking a deep breath before pushing the kneeling hostage to the floor.

He proceeds to decapitate the man.

The vile extremist group has previously used youngsters in videos.

A British child of around five years old – called Isa – finished off a horror clip released in early January by saying: "We will kill the Kuffar (unbelievers) over there."

U.S. and coalition forces have launched more than 9,000 air strikes in Iraq and Syria in the war against ISIS.

(dailystar.co.uk)