Trump: Trade Wars, Serious Problems

Trade wars have always led to serious problems and often to real it has led to real war. So the facts are all in place for something like that to happen. I would like to think that there is some way that we can avert it. History does not show us any reason to be optimistic. (SPDR S&P 500 ETF Trust (SPY), iShares FTSE/Xinhua China 25 Index ETF (FXI), United States Oil Fund LP ETF (USO), Nymex Copper Futures)