According to Wikipedia, War is a state of armed conflict between states or it is generally characterized by extreme aggression, destruction and mortality, using regular or irregular military forces. If world war 3 were to ever happen, it would most likely begin with America and North Korea. The altercations arose after several months of bad blood between kim Jong-un and Donald Trump but the root of the problem goes way back to more than half a century ago. There are around 250,000 Americans living in South Korea who could all be placed at great risk if a conflict broke out, it is claimed.
The United States really isn’t used to regarding the lives of citizens of other countries when it comes to getting what they want. However, DC certainly cannot fail to acknowledge that over 250,000 Americans live in South Korea. Some of the post war effects could be the trauma the nations face, mass destruction of cities and this sometimes affect the generation yet unborn, for example the Hiroshima and Nagasaki atomic bombings caused terrible mutations still affecting the citizens till date and so many other negative effects.
If world war 3 ever broke out the safest nations will be Switzerland, Malta, Ireland, Fiji and a few others and even they would be affected either directly or indirectly. Experiencing a third world war wouldn’t be good for anyone not even the strongest nations are immune to the negative effects of war.