As the season 5 opener of the series, Homeland explained better than pretty much any news program or Western documentary on islam and the Islamic State detailed in the bunker scene, the whole point of the reformation of the Caliphate was an end of the world battle with the unbeliever for the world. This is why their magazine is called, ‘Dabiq’ after the city in which it is anticipated.
In the video that the Islamic State made, there is a lot of tanks. Tanks-a-lot would have been a better name for the video actually. But there is an informative bit where they show the flags of the countries they are at war with. Yes, most of these countries do not know it or worse, refuse to know that they are at war with them, but that typically does not end well. But we who live in these nations with these flags should consider ourselves as having been put on notice. We are being waged war upon.
(In French and seemingly about Tunisia?)
Articles on this video release: