Comment by blitzar

I would like to see unified command and control facilities, interoperability agreements, combined purchasing and a within EU military industrial plan. Most of this already exists in the form of NATO and can be repurposed for near $0.

There is no need for anything more, nor are the institutions really designed for a single president / general to direct everyone in a conflict. Putting in place all the capabilities to work together in a conflict should be done however.