3rd night = Wishes from Main Street. Everyone has a favorite spot and mine changes depending on whether or not the park stays open after the fireworks and whether you plan to stick around afterward. With a young group, I'm guessing you'll want to go to bed after the show (and that's a pretty good way to end the night).
A military coup (d'etat) is an organized action by the armed forces of a country meant to overthrow and replace its government.
A military dictatorship is a type of government where there military holds political power. There is no attention to public opinion or individual rights, i.e. if someone where to disagree with the military they'd be arrested and probably killed. Example of a military dictatorship: