In my campaign, I've seen a number of well executed seaborn invasions by
Sicily, the Moors, and Bisantium, but all the invasions from England follow
the same pattern - land and wait, and then wait, and they wait some more.

I am playing as France, and right now I have three English full stacks sitting
near Burges, all led by 8+ star night fighters... waiting for me to assemble
a stack that can deal with them. It is unlikely that the three stacks
could take my citadel in Burges, but the computer has assaulted against
much higher odds. There is somethign wrong with that assault.