Playing to Survive

(I've gone back in the Forum over five years, and haven't seen anything that looks like this. So I thought I'd ask....)
Well, things didn't go well for you at all, did they.
You bungled your first builds (wrong units, wrong places), didn't see alliances coming, misread other players intentions towards you, and now you're down to three units - at most.
But you have been having a great time playing, and you want to keep going as long as you can. Even though there's no chance at all you can have an affect on the final outcome, and can get wiped out in a few turns if all your neighbors gang up on you.
What's your strategy for sticking around as long as possible, with just simply mutually supporting all your units to Hold in place?
Well, things didn't go well for you at all, did they.
You bungled your first builds (wrong units, wrong places), didn't see alliances coming, misread other players intentions towards you, and now you're down to three units - at most.
But you have been having a great time playing, and you want to keep going as long as you can. Even though there's no chance at all you can have an affect on the final outcome, and can get wiped out in a few turns if all your neighbors gang up on you.
What's your strategy for sticking around as long as possible, with just simply mutually supporting all your units to Hold in place?