War Risk
  
Yes, there's risk of war. War is bad. Avoid war. Avoid war at all costs. Bad war, bad.
Odd fact: From 1941-44, Hitler was marching through Europe...and the stock markets of the world mostly went up. But still, war is bad. It's risky.
War risk is a Thing that usually hammers the risk-seeking members of the investment community, who tend to buy safe, defensive things like gold and oil when war clouds bloom.