[Saxon]

Just a thought. LA Man has stealth units and commanders. One solid army of them will take out most normal PD with ease. Send this army into enemy territory, capture rich provinces and raise taxes. Move on and strike again. Follow up with spies who keeps instilling unrest once the enemy retakes the province. Based on what is in the other active thread on spies, once the unrest is up with the high taxes, instilling unrest should be easy and safe.

Take out a few key provinces. The enemy gold supply goes down significantly, making it harder to run the giant strategy he is using. Further, he has to divert resources to retaking and patrolling the provinces you took. This takes pressure off your territory.

Raiding with spies to compound the effect. I think they call it joint operations in the real world.