Conflict

If the connected square (▪️) region is friendly, rotate clockwise until you find a region that isn’t. If none, move to that region and repeat.

If attacking region is sovereign, perform an invasion.

If attacking region is colonized, the attacking strength is the amount of unrest. If victorious, open connected order on other side of border or the easternmost order. If defeated, close connected order in region or the westernmost order.
Afterwards: the attacked region gains 1 strength.