For what? EU is plenty powerful enough to do that, but for what end. What would they do different that is significant. Sure there are minor differences in various policies and lots of disagreements, but overall our high level aims are too close and so the EU is better off not having to.
Have you ever heard of the military-industrial complex? If the EU wants to be independent they need to develop their own at great cost. (note that the US is already depending on EU's military industrial complex for various things, so you would also force the US to take those in-house) Which is why despite differences the US and EU are likely to remain allies for a long time - you cannot afford to go alone.
Have you ever heard of the military-industrial complex? If the EU wants to be independent they need to develop their own at great cost. (note that the US is already depending on EU's military industrial complex for various things, so you would also force the US to take those in-house) Which is why despite differences the US and EU are likely to remain allies for a long time - you cannot afford to go alone.