Ahh yes 6th. Working from memory in most of my responses and without checking I'm pretty bad at dates and numbers tbh. It's worse with african countries though I am one of the people that mixes up their histories all the time to my great shame. I don't even know why it happens, I don't do it with south american countries.

The general point stands, the stability of their government is directly tied to whether or not they're doing what the americans want. And whenever things aren't going precisely as desired the coups happen incredibly easily. By design.