Many experts believe that the World War 3 may just be around the corner. There can be many reasons to trigger it such as resources, IT, foods, and weapons. If WW3 breaks out then it is going to affect some of the most important countries in the world. There are some other countries who will actively participate in the World War 3. Countries like Russia, the USA, and China are likely to be more active if the war happens today. Here are the top 10 countries that can probably start Word War 3.