This Is What Will Happen If World War III Erupts

This is what would happen if World War III broke out. After 15 minutes, all presidents in every country would ask their citizens to stay home, and a global lockdown would follow after 12 hours.

All borders in every country would be closed, and concerns about nuclear weapons would soon grow. After one day the rich and powerful would start taking shelter in underground bunkers. After two days the communication and internet systems would be completely shut down, and the world would go dark after three days.

The first nuke was used, causing a chain reaction of retaliation. The world as we know it has changed forever. After four days, the air is so polluted that sunlight can no longer be seen from the earth, causing extreme consequences after one week.

Food production would stop, causing the global food chain to collapse, and two billion people would starve and have no food. After one month, the ozone layer would be destroyed and many crops would die after one year. All cities and buildings, as well as crops would disappear and become rubble, and ash would fly everywhere, and the powerful nations would continue to defend their territories.
Until one of them wins this war.

Greetings always compact.

By @midiaga