On a more serious note, there has been talk of the UK sharing aircraft carriers with France, so it isn't a completely daft idea (although certain sections of the UK public would probably prefer to attack France as a last resort - presumably aiming to miss the holiday homes, vineyards and ski resorts).
http://en.wikipedia.org/wiki/Auld_Alliance
On a more serious note, there has been talk of the UK sharing aircraft carriers with France, so it isn't a completely daft idea (although certain sections of the UK public would probably prefer to attack France as a last resort - presumably aiming to miss the holiday homes, vineyards and ski resorts).