Thats gonna cost you like 50-60 mpp a turn if he goes raiding.
The Norway Convoys ? He usually does that with the UK and I've given up on trying to stop him.
The past two turns [March and April] I used the Kreigsmarine to snipe at him, and he lost a French CL and a French CA. I didn't lose any KM ships but most everybody had to put back into port for repairs. Plunder from the Low Countries rebuilt my fleet.