Quote Originally Posted by Conqueror
You can try to lure them out by separating your general from the rest of the army. Have both the general and the army sieging the same city. The AI might be tricked into attacking the "lone" general, while your army will join as reinforcements (make sure that you're set to control them). This can be very dangerous if your computer doesn't do large battles well, as you might get delayed reinforcements which puts your general in danger.
And you have to be careful about the 1.3 bug with this too...the AI can sally against the stack, rather than the general. If it does so you won't be able to control the family member, even if you have the box set to player control.