If province to be invaded has a small garrison in the fort, bride the garrison then invade. It will be a siege relief, you fight the army outside and you keep the buildings.
If the garrison is big and the cost of bribing is huge, invade and during the siege bribe the garrison. You and they lose some people due to the seige though.
I'm not sure whether this works for spies opening the gate, can anyone confirm? The odds of it late game is 0%.
Perfect for those Vikings who want to keep buildings.
Bookmarks