If you speculate, you can invest in a portfolio, do more gold and oil futures before the war, and short the dollar; After the war, a lot of money will be integrated into the safe-haven prices of gold and oil, and the dollar will depreciate. At this time, you will reverse the operation two or three days before the end of the war. As soon as the news of the end of the war comes out, the prices of gold and oil will definitely fall and the dollar will appreciate. Then invest your money in a technology company or a car company.