Ok so I come back and people actualy play this game now?
Ok before you talked about protectorcrates, and their importance... The advantage of having protectorcrates is very large in the Very Hard difficulty of the campain, but this is only true in europe, for which, you want to make those minor german nations (Bavaria, Wurtemburg, Westphalia, Hannover, Saxony) to be your protectorcrates or your allies, simply because, they are small but when they choose a region to attack they attack it in full force with everything, and they are all allied with austria at the begging of the campain, and on the very hard difficulty if you attack austria, without having good relations with the minor nations they will all jump in and help to attack you. which allows austria to have a safe western border.
And if your saying that you cant play the us in the grand campain... you can!
Just not starting in 1700, go to the road to independence and choose the very last one, its right after you become a country and the actualy state of the world, with british and french colonies in india, the french presence in canda removed, and many minor nations that had sprung up at the time such as naples, Afghanistan, and Norway, and you pick up from there with the relation they depict the States having with the world. And the way that america starts allows it to easily build a fleet, expand west and send troups across the atlantic to Europe, for me i took the african coast and expanded through asia minor and the illberian peninsula