According to CoinMeta, and as reported by Reuters, despite skepticism about whether the war between the United States and Iran can be quickly resolved through diplomacy, European stock markets rose on Tuesday along with U.S. futures. Brent crude oil futures increased by 1.4% to $84.95 per barrel, after falling to a three-week low the previous day. The Japanese yen weakened slightly but still retained most of the gains it had made due to the joint actions of Tokyo and Washington in supporting the currency. Market participants are concerned that Japan's expansionary fiscal policy and the gradual interest rate hikes by the Bank of Japan may put pressure on the yen.