How would World War be fought if one ever breaks out?

oh my dear friend,i think we should pray to god it never happen:)

it is so horrible for us to hear that

there are many ways to let lots of persons in die. so must don't use it to persons. you can use it in good things. such as for electric.or other good things.

maybe, there will be an online warfare. But we shouldn't think about war anymore. Peace.

This is the age of nuclear weapons like atom bombs, etc. Almost all the countries have atomic weapons that are very much destructive in nature. If a world war broke out, this time, it will be these weapons that is going to answer. All the developed countries and most of the developing countries have developed their own destructive nuclear weapons. So the UN must take necessary steps to avoid any type of conflict between nations. Most probably, the next world war, if it happens may be due to scarcity of food and water.
Save water and food for future use...