We are trying to fight above our weight, but can no longer afford our Armed Forces at its present size.
Our huge Armed Forces made sense when we had an Empire to win. It made sense when we had an Empire to defend and maintain, but now our Empire is gone, we are used to fight other people's battles. We last fought alone over a quarter of a cenutry ago for a big lump of Guano in the South Atlantic. Since then, our battles have been for the Americans or NATO, defending borders a long way away from our own.
The nature of the threat has also changed. Al Qaeda does not have tanks, aircraft, ships or submarines. It does not even have a Army in the conventional sense. We have an outdated Military but we cannot afford to modernise it.
So, we have three choices.
1. Pour tens of billions a year maintaining our present numbers and capability.
2. Downsize and concentrate on defending ourselves, and not the World
3. Spread the costs by joining a EU Army. Rethink our NATO commitments.