There were countless wars and it did bring much suffering to the people who generally had little to do with the things you speak of.

The people I see in the streets seem to want a better life for themselves and the people around them.

I think another war wouldn't solve most of our issues, at least not more than WW1 and WW2 did. It's more like a big traumatism for everyone, and a deep suffering inflicted on a massive scale.

I believe cleansing can happen when we take the time to look inside ourselves and realize that we're worthy of unconditional love. Once we truly love ourselves I think it will be the moment we can make our world a place where truth, love and justice can reign, for the betterment of All.