Abandoning the *Western* front, I mean. I confused East and West a few times in the last post, but I think the meaning of what I wrote was clear enough. I really should sleep. But the great strategist Val Haris cannot sleep, while the people of Drullian still have to watch the horrendously scripted shows on STAG!
As for Brit, you really don't need to worry much about her. If the fighting retreat is executed quickly, you should meet her right after her first repair. Now your forces would still be outnumbered and outgunned, but much less so than before, since it will take a long time for the heavy tanks and artillery that were lured into the (empty) Western territory to catch up, and some of them may not ever catch up since they would run out of fuel trying to find you.
But most importantly, you now have some sort of territory to defend from! Not a choke point, but just a narrower front. The nature of the battle had changed.