World War IV is a planned later world war also known as the Fourth World War. It will be fought with futuristic laser weaponry. Who might start it and how it might start are not yet known.
The estimated duration will be from 2037 through 2045. This means that World War IV lasts for 8 years.
Countries fighting the Fourth World War
- Brunei Darussalam
- Sri Lanka
The U.S., the U.K., or the Russian Federation, will not be fighting the war.