Temporal Cold War

This war was introduced to Archer by Daniels on Enterprise. It was also brought up by Seven of Nine in Voyager. Daniels, however, showed a map of the faction involved and the time lines. The different factions were trying to manipulate history for a  successful outcome for their species. This war produced a Temporal Prime Directive. There was a group of Temporal Agents from the 31st century who were in charge of protecting the integrity of the true timeline.

Eugenic Wars

These were a series of conflicts from 1992 to 1996. They were primarily on Earth. They resulted from the improvement of humans through selective breeding and genetic engineering. They caused an estimate of 30 million deaths and almost created another dark age. The amount of conflicts are not known. Some say humanity banded together to kill these men while others believe they killed eachother.