The Euro may have prevented war....by surrendering to its enemy....ISLUM.
The Brits have never been big on surrendering their little island.
The Euro is a currency. What are you talking about? The Eurozone or the European union or Europe or the currency Euro?
Oh and the English have surrendered the southern part of their island to the Moslems from Pakistan and Bangladesh
Btw, the thing about the "Brits surrendering their little island" - you do have to go back a bit in time, but the English invited a German king to come and rule them in the 1700s -- George I, their current queen married a Greek, Queen Victoria married a German (the House of Saxe-Coburg-Gotha is heavily German)
Going further back you see that the English invited a Dutch king (William I) to rule them and earlier invited Scottish kings (Stuarts), Welsh (Tudor) and French (an invitation to the French Dauphin that failed)