There is enough for everyone to have what they need without exploitation. Adequate distribution of resources, including education, without violence can lead to a sustainable system that doesn't stress the ecosphere. Alternately, continued violence feeds population surges and hoarding the products of exploitative extraction, which endanger the survival of our species. In short, if we want a future with humans on Earth, we've got to stop war.
You know how we built the pyramids? You gotta ask yourself a question always flip the script. What if up was down and down was up? What if you looked down into space standing up on Earth? This is how we built the pyramids.