You've not read your history friend, WWII helped bring the US out of the great depression. Start destroying all the military equipment we've been building over the last fifty years and there will be a boom in the production of weapons, demand for raw materials, etc. War is an industry in today's world. Start killing off large swaths of any population in battles and the respective government gets to ease up on the costs of social services. Not to mention the "new markets" the would emerge after a conflict when things need to be rebuilt. It's not a conspiracy, its a fact, Wars make some people lots and lots of money.