Personally I would put half in foreign stocks (like EFA etf) and half in gold. The dollar is dropping against foreign currencies and they are all dropping against gold. Every central bank is printing money like there is no tomorrow: with good reason we are in the midst of a deflationary shock.

But couple the money printing with record low interest rates (and negative interest rates), this creates a special situation where gold (and other hard currency like bitcoin) outperforms. With a negative real rate on bonds, you will lose inflation adjusted purchasing power in bonds even if you come out positive. There are not a lot of great options right now.