The so-called Islamic State has released its most chilling call to arms yet, threatening the UK for being part of a "coalition of devils" and taunting the West saying "bring it on", in a video that is as Western as a Hollywood-movie.
In a highly-stylised clip from the terrorist group's Al-Hayat Media Centre, the group also taunts the US, claiming Islamic State fighters "haunt the mind of your soldiers and sew fear into their hearts" following the US' failed missions in Afghanistan and Iraq.
The 4.13 minute long video, which features Hollywood-like production values and a booming voiceover in an American accent, begins with Isis bragging about their expanding territory and Khilafah - ruling system - saying it is already greater than Britain, eight times the size of Belgium, and 30 times the size of Qatar.
The video says its khilafah is built on the "prophetic methodology", compared to the West's "secular state built on man-made rules" whose soldiers fight for "the interests of legislators, liars, fornicators and corporations". Pictures of Barack Obama, George Bush, Bill Clinton and Tony Blair overlay the voiceover.
IS fighters in contrast, the video claims, are: "Men honoured with Islam, who climb to its parks to perform jihad, answering the call to unite under one flag."
The voiceover continues: "This is the source of our glory, our obedience to our lord."
The group then boasts of destroying historical monuments like the 2,000-Year-Old Arch Of Triumph In Palmyra, Syria, before saying there is "no honour to be found in nationalism".
Justice, the video says, is served through the Islamic court.
Turning its focus to America, the video says the US claim to have the "greatest army history has ever known", but its soldiers, IS claim, are weak. IS claims they lack the "will and resolve" because they are "still scarred" by their defeats in Afghanistan and Iraq.
As the US, "cooks the facts on airstrikes", the video claims, IS soldiers "continue to haunt the minds of your soldiers and sew fear into their hearts".
US soldiers, IS claims, returned home "dead or suicidal". It says 6,500 US soldiers commit suicide every year. That figure, from 2012, has been widely reported.
IS then talk about the West's trillion-dollar investment in countering them, while their soldiers fire 50 cent bullets on the ground to "send them to hell".
The video talks about the West's "coalition of devils" - which includes Iran, Turkey and Russia - and a global coalition of 60 countries including the UK. The flags of those nations are shown.
The rising tide against IS, "only increase our faith", the video claims, warning the "flames of war will burn you on the hills of Dabiq".
The video ends with a war cry: "Bring it on. Because we echo the mighty call of our prophets. Gather your allies, plot against us, who us no respite, our ally is the greatest, he is Allah and all glory belongs to him."
The video is the second to emerge from Isis in as many days, with French fighters issuing a chilling threat on France just 24 hours after the terrorist group used movie footage of the Eiffel Tower's collapse in another video.
In the video, released on Twitter, a balaclava-clad militant is seen warning "we will be coming, we will come to crush your country".
The militant then tells the camera: "Hey you, François [Hollande], you declared a war that you cannot win, you will not be able to win, you promise victory for your people that is for the people of the West.
"But] the victory has been promised to us by our creator, by our Lord."
Following the Paris bombing and shooting attacks on November 13, that resulted in 130 deaths, IS made threats against both Washington and New York. America has since issued a global travel alert to its citizens.