Well, you guys should deal with the Leeds question first.
How come a 800 year old military is so inept in Planetary invasions? You should (both sides) be thinking on how to end the Leeds campaign. Either a complete capture by the Gallics, or a impressive counter strike that makes them abandon the invasion and focus on blockading the planet and moving ahead.
Keeping an "unstoppable" war machine stuck at a planet for 2 years or so it's the most evident proof of stagnation of the Bretonian theater plotline. That is the reason why bretonians can still think of a victory, because they aren't' really threatened in New London, Newcastle or Manchester.