Share your insights or perspective on the financial matter presented in the input.

How to rebalance a passive portfolio if I speculate a war is coming? 
Normally, in a war everybody suffers and the entire economy goes down. Military contractors do better than average, but the average sucks. The way to take advantage of knowing a war is coming is to leave as soon as possible. There are strategic materials that can become valuable in a war, but such investments are generally very specialized and not something an ordinary investor would be in a position to exploit.  The most profitable businesses in war are food, oil, and ammunition.