Country Name: Name of the country.

ISO Code (2): The 2 letter ISO country code. You can find out more about these here.

ISO Code (3): The 3 letter ISO country code. You can find out more about these here.

Address Format: You can define the address formatting for each country.

Example:
{firstname} {lastname}
{address_1}
{address_2}
{zone} {postcode}
{country}

Each part of the address format must contained within a curly bracket.

After you have made your changes, click save button