Come on, no more teasing today? Is that for real?
As for the wars, there are several things here:
1. As long as the economy is tightly integrated, the local economies could not be protected/promoted by the local armies. So, yes, the EU leads to more Europe-wide security.
2. To further extrapolate that logic, as long as the world economy is global and tightly integrated, there would be more global security.
So, what have you said about the evils of the globalization last time?