EVA was first designed and conceived during Second World War, but was still primitive and required tech operators to function. It was a way for commanders to be able to control and receive information from the battlefield in real time, all the while in the safety of their command centers. This allowed commanders to take control of developing situations anywhere in the world instantly. Most of the functionality of the EVA was developed between the First Tiberium War and Second Tiberium War. At the time of the First Tiberium War, the EVA network did not have the extremely powerful data analysis capabilities it was later given, and served primarily as a data communications link and user interface between distant commanders and the troops they commanded, giving them better control over them.