Hide content by country? Best practice for Campaigns

Hi there, 

We have just started selling our products to customers in a new country, and I would like to make sure the links in my emails take the customers to the page in their currency. 

I saw the guide where you can show content to customers in a certain country ex. person.Country == “United States”. This works when we only want to show content to 1 particular country.

However, is there a way to hide a block from one particular country, and show it to all other countries? Ex. if you sell to 5 countries and want to hide some of that content from just 1 of the countries, what would be the best way to do it? Is there a particular condition, or would the best way to do this be setting up a duplicate campaign?

Thank you for your help!