Imo we simply must push forward with defence consolidation with co-operation from our EU partners i.e. an EU Defence Force. We simply cannot afford to have our own effective Army, Navy and Air Force any more - and neither can any other EU nations. An EUDF is the only logical conclusion the strategic defence review can come to, I can't see any other option unless the government are willing to sacrifice sanity for popularity.
Unworkable without complete European Soverignty. That is not going to happen anytime soon, if ever.