Without countries, we’d need no borders. Without the borders, we’d need no fences. Nor defences or offences.
Imagine there’s no army.
20 countries do not have one.
Link: http://www.diplomatmagazine.co.uk/index.php?option=com_content&view=article&id=321
Personally, I can see issues with this for many countries. So many potential essays…
Then how do we defend ourselves if attacked?