The first round of formal talks between the United States and Iran will be held at the Serena Hotel in Islamabad, Pakistan at 13:00 Beijing time today. Negotiation is never easy, and there have been numerous prolonged negotiations throughout history, and fighting while negotiating is the norm in war and diplomacy. The military demarcation line for the Korean ceasefire and the repatriation of prisoners of war have been discussed for over two years. A classic scene was born, where the two pilots sat quietly at the negotiation table for 132 minutes without saying a word (the longest silence in history). The result was only a ceasefire agreement signed, and no peace treaty has been signed yet. Strictly speaking, the peninsula is still in a state of war. The pre war negotiations between Japan and the United States lasted for 8 months, with a total of 45 rounds of talks. Japan was negotiating with the United States while secretly launching a surprise attack on Pearl Harbor. The Japanese ambassador was still submitting documents, and the bomb had already landed at Pearl Harbor, typical of using negotiations to cover up military raids. Talking is a cover, fighting is a means; If we can't reach an agreement, we'll fight. If we can't move, we'll talk again. 73000 BTC can be empty, 66000 BTC can be excess.