From: east coast, usa
how the Allies can still put up a fight given a seemingly impossible scenario such as the surrender of the UK.
I've only seen the UK surrender once so I wouldn't think it happens frequently. An Axis occupied England can only be left garrison-less if the player uses the knowledge that the computer will only invade in the Bristol-Plymouth area and covers the area with subs. This strategy will eliminate the Allied naval units and force the computer to send in unescorted amphibious transports.
I've switched sides after playing the Axis and the Allies can mount a comeback [against the computer]. The Axis have too much to cover. But in the current SC3, I have only seen the Allied computer attempt to return at the above mentioned UK location. If the Allied computer used other options, the game might be more challenging. The Persian Gulf, Red Sea, Morocco, Spain, Portugal, and on northwards all the way to Narvik should be open to invasion
. I don't know if this is possible to script, though.