British economy and impossible to conquer them, Prussian Army, but nothing is as horrifying as late game stacks of Marathas. Oh the video game blood I have spilled in India. Stack after stack after stack being sent from Boston/Philadelphia, Britain and whatever I can come up with from India itself to be thrown into the grinder against the Orange Menace.
France normally does okay or the UP knock them out and then Spain will conquer all of Western Europe and then I as Britain have to conquer it all to set the balance back where it needs to be.
Basically Britain has too many advantages but Prussia is king of the battlefield.