Well, there are a few reasons, but I will give you an advantage, where you can find the disadvantage from it.
Europe has a small coastline, but with it, there's a sea that leads straight to north America. That means there's easy transport of goods.
Triangular trade or triangle trade is a historical term indicating trade among three ports or regions.
Answer:
no power to compel obedience if one state invaded another there was nothing to repelling the invasion
Answer:
By increasing production efficiency