North or South America is a country? :-)

It is not a country. It is a continent, two to be precise. The usa are a nation

The United States are a country. America is the continent that includes the States.

As Pierre Trudeau put it:

Living next to you is in some ways like sleeping with an elephant. No matter how friendly and even-tempered is the beast, if I can call it that, one is affected by every twitch and grunt.