What is the very first war in world(earth)history?

Question:

What is the very first war in world(earth)history?

Best Answer - Chosen by Asker: The first recorded war occurred in about 2700 B.C. It was between Sumer (in modern Iraq) and Elam (a region that is now part of Iran), and was fought in the area around Basra (just like the Iran-Iraq war of the 1980s). Of course, humans had been fighting each other for thousands of years before that, but there are no records of these earlier conflicts. (mainly because writing wasn't invented 3000 B.C. )