U.S. dealing with Cuba and Venezuela?

Why do you have to deploy troops. Cuba cares not for your politics.....leave theirs alone. If you studied Caban history you would understand why they went the way they did. I loved the place while on holiday. Dont listen to Gloria Estafan.....her father was a vicious swine in the Army before Castro booted him out. Do you think all countrys should suck up to you. You cant even cure most of your peoples illness.