Has warfare always been a fact of human existence?

I believe rebel tribes had minor warfare dating back to the beginning. Homo sapiens has been around nearly 100,000, not 3400, years. Not to be offensive, but if this is indeed a human history, not just a Biblical one, one must be objective and use archaeological terms, not "Genesis" and "Moses."

Paleo Anthropologists can only confirm warlike behavior if they find mass graves in which the skeletal remains have fatal stone / spear injuries.

This is still a very difficult question to answer.

Good luck!