You agreed to this proposal; Mozolavia would stand by while you gobbled up the rump state of the knights. There would be one last great campaign, one that might see you trade in your duke's coronet for the crown of a king. The signatories of this secret article were you, Casimir, Albrecht, and Władysław. The marriage itself would happen as soon as Jan reached his majority, but the betrothal would cover it for now. Yet you knew what time it was and what time would come.
As soon as you got back home, you immediately drew up the orders; the fleet was to leave port immediately, in battle formation. Ehrenfried was ordered to call the muster. In the last days of the spring, there would be assembled the greatest army Greifswald had seen. Albrecht brought out his expensive siege weapons and artillery as well. For whatever difference that they might make.
The order of battle would be simple; you would be the supreme commander, Albrecht your deputy and head of the infantry, and Ehrenfried would be in charge of the cavalry. You would cross the border in the night to ensure you would at least be able to fight this war on their soil. Which is also when you would send the formal declaration of war.
There is still one thing left to do, though: the last time you were at war with them, the mercantile cities on the coast rose up against the arbitrary rule of the order. Though, they were forced to accept their overlordship once more, and your inability to help them thanks to the Mozolavians has left its sting. Still, they now have to bear an even heavier tax burden without Greifswald. And your more liberal trade policy might make you a more able partner; all that may be needed is to sweep along the coastline.