Don't want to start an argument, but the lists that originated this article are waaaaaaaaay incorrect if we are looking for a list of countries.
They are from Postal Companies, which usually make their own division of the earth according to their logistics. So make sure you don't get confused. Unless the purpose of your list is directly related to delivery of packages, etc... that's NOT a list that shows the countries in the world
A lot of those "countries" in the lists posted here are regions in countries.
Depending on how consistent you want the country list to be, check and official list of countries from institutions such as UN, or the ISO country list, etc... They might vary in one or two of the naming, and they might have 1 or 2 countries more give or take, but we are speaking of a number of:
230 countries all together in the world NOT 400
As i said, it depends from your requirements, but in my case, i think that it's something important, so i made sure i have an accurate one
Cheers,
NiCo