But make no mistake, economic woes and war are tied together like **** and stink. In the past it was about conquest. Kings would party until resources started to dry up, conquer some more land, get some ore gold and title and what not, and keep the party going. In our day and age its monetary policy first, military second. The spending is necessary to keep the money flowing and the inevitable collapse just out of sight. So, when all else fails, direct capital and production efforts into war making.