Americas Campaign - How many chapters?

Hi all. How many chapters actually are there for the Americas campaign?

I heard someone mention that the last campaign is after the British have recognised American sovereignty, but when I finish the "Kick the Brits out and capture 25 provinces" chapter, I get a video, a brief 'victory popup', and kicked back to the main menu...

I did not complete the third chapter yet but I guess you can try checking the grand campaign to see if the United States have popped up among the main nations, or check the Road to Independance menu to see if the fourth chapter is unlocked.

4th chapter should be unlocked. Its like 1780-1810.