Well, that's an interesting scenario, to say the least.
If I remember my briefings for Operation 'Reforger'
correctly, this called for the UK to be turned into a giant US aircraft carrier and
logistical base, in the event of those dastardly Russians invading western Germany.
One can only assume a similar scenario should the US ever decide to invade Europe.
Of course, they could invade via the Middle East or work their way up through Italy or southern France, but they would need a stageing post and I
think that the UK would fit very nicely in their back pocket.
It could never happen of course, because old emnities would be forgotten, new alliances forged in the heat of the moment and not forgetting that
Russia would probably
come in to help and secure the northern flank.
China would protect our southern flank by invading Viet Nam, Laos, Cambodia, Korea, Malaysia, Burma, The Phillipines, New Zealand and Australia and
would eventually invade South America.
That leaves Japan, India, Pakistan and Bangladesh to fight it out with each other.
In the meantime, we Brits would, as a matter of course, invade Iceland and Greenland from where we could launch our bombing campaign of the States via
our friends in Canada, whilst simultaneously invading the USA from Alaska.
We Brits would fight valiantly to the bitter end and when the dust had settled, the USA would rebuild our shattered economy and infrastructure and
lavish us with all sorts of goodies.
Oh yeah! I almost forgot.
Taiwan would invade China