Divided approach, or joint one?

Typically EU would be that they all deny having made any kind of military space program, only admitting to it when the need emerges.
I can see the Brits and French especially doing something independently.

The EU has been thinking of a mission to Mars, so some groundwork can already have been done for that, including a few launch sites with launchbay and perhaps a platform in orbit. Defenses might be in place to deflect space debris that could be adapted into weapons.