Qarir sends food for troops of the armies, for they will be too busy focusing on economics to help in war, at the time being.
The Mongol Riders and infantry go to sabotage camps and soldier movements of the North Star. Old allies will always be allies. No man left behind.
One by one each soldier is picked off by unseen archers and battlefield assassins. You plan to sabotage some of the best infantry in the world?
Moving through Bombladoy and attacking those small pockets of Shigori areas then setting up defenses bordering Southeast Asia before attacking.
I'd also suggest trying to have peace with the North Star. We widdle you away until you have no more men to attack if you keep trying to sabotage our camps.