In Cornwall, players try to enlarge the landscape by adding tiles to it and placing pawns on these tiles. By doing so, they earn money, which is desperately needed to bring their pawns back from the pub!
Since all pawns move to the pub to celebrate the end of the workday once an area is complete, it becomes tricky to have enough pawns available to conquer new areas. You can leave pawns on an area in order to continue to increase the size of it, but then the area might become attractive for other players, too, with them joining you — or possibly even taking it over for themselves...