Defensive Walls

Defensive walls can be placed on any open tile to create a reinforced structure to prevent passage through them.

Image	Name	Happiness	Defence	Cost
	Stone Wall	N/A	x1	xx Stone + xx Wood
	Thin Stone Wall	N/A	x1	xx Stone + xx Wealth
	Fine Stone Wall	x1	x2	xx Stone + xx Wealth
	Iron Spiked Wood Wall	x1	x2	xx Wood + xx Iron
	Dragon Enforced Stone Wall	x1	x2	xx Dragonforce + xx Stone
	Dreadstone and Obsidian Wall	x1	x3	xx Dreadstone + xx Obsidian
	Dreadstone and Titanium Wall	x1	x3	xx Dreadstone + xx Titanium