How many "Europeans" in the ISIS/ISIL/IS/xyz wahhabi terrorist army?

So .... looking at the chart below, can we say that Europe has invaded Syria and Iraq and might invade Jordan, Saudi Arabia, Lebanon and Israel ?  That's the new doublespeak with reference to Russia isn't it, so why can't we apply it to the case in the Middle East too, eh?

From The Economist:
Why and how Westerners go to fight in Syria and Iraq  

THE two young men in the bus from Antakya, in south-eastern Turkey, to Reyhanli, nearer the border with Syria, sported long beards, calf-length trousers and toted small drawstring bags with their minimal belongings. They spoke in broken Arabic to the bus driver (local Turks usually have a smattering of the language) but to each other in a regional British accent. They were just two out of hundreds of Muslims from Europe, setting off to Syria to join the battle. That was two years ago. Since then, several thousand may have signed up—and the rate may be increasing. What do they do when they get there? And what might they do when they go home?

The effect of the swelling influx is apparent as the Islamic State (IS), a brutal extremist group in Syria and Iraq that has attracted most foreign fighters, stakes a claim to a swathe of territory that is the size of Jordan and embraces a similar population—6m or so. Boastful combatants post well-scripted videos to attract their foreign peers, promising heaven for those who leave their lives of Western decadence to become “martyrs”. They tweet “selfies” holding the severed heads of their enemies after photos of the luxuries, such as Red Bull, an energy drink, that are available to the fighters. And they issue threats to the West while using emoticons—smiling faces, for instance, formed by punctuation marks—and internet acronyms such as LOL.......