Hammarsett had around 4-5K, MI had about 5-6K. What huge armies are you talking about?
That's what you have
after you've beaten back our forces
and marched through the starving regions
and overran the level five city walls with 9k CS of militia behind them. Minas Ithil had 12k originally. Hammarsett had 7k originally. That's about 1.5x bigger than what you normally field, which makes sense, since you had 2x gold and diminishing returns kicks in when all of your nobles start fielding 50+ troops.
What are y'all complaining about? Coria is the one sick with bad ally syndrome!
To be fair, Tara has been fielding 20k CS lately. That's not shabby. They have more nobles now and it shows.