US Secretary of State Antony Blinken has visited the Middle East since January 29, successively visiting Egypt, Israel and Palestine, of which Israel and Palestine are the key and difficult points. In the new version of the "National Security Strategy" of the United States in 2022, China was defined as the most significant and long-term competitor, while Russia was the most urgent threat. In contrast, the importance of the Middle East in the global strategy of the United States declined. In fact, over the past 10 years, successive U.S. governments have tried to implement strategic contraction in the Middle East and reduce their attention and investment in the Middle East. At the peak of the war in Iraq and Afghanistan, the United States stationed 200000 troops in the Greater Middle East, and now there are only more than 30000. There is a popular saying in the American Middle East research circle: Although you are not interested in the Middle East, there will always be a crisis in the Middle East that will pull you back. The possibility of such a prospect in the Middle East in 2023 is increasingly high. With the intensification of global competition between China and the United States, the crisis in Ukraine has entered a critical stage, and the United States does not want the Middle East to grow out of the way, which puts itself in an awkward position of "three-line game". This is the strategic background of the successive visits of senior American officials to the Middle East. The direct consequence of the contraction of the United States strategy in the Middle East is the decline of its influence. "I have never seen the influence of the United States in the Middle East so small," said Camp, the director of Middle East affairs of the National Security Council during the Reagan era. For a long time, the United States has not only been the largest external factor affecting the power pattern in the Middle East, but also the most important pillar of the power pattern in the Middle East itself. Now America's allies and opponents in the Middle East are increasingly not afraid to cause trouble to the United States. On the issue of Ukraine, the Middle East is more disturbing to the United States. As the closest ally of the United States, Israel has a significant difference from the policies of the United States and Europe, and only agreed to provide humanitarian assistance and defensive equipment to Ukraine; As a strategic partner of the United States for more than 80 years, Saudi Arabia even "joined Russia" in the oil issue; Iran, as the most important opponent of the United States, has stepped up its military cooperation with Russia. What worries the United States most is that a new crisis is likely to emerge in the Middle East. From the current situation, the Iranian issue and the Palestinian-Israeli relationship are two dangerous "time bombs". The risk of the Iranian nuclear issue rising into the Iranian nuclear crisis and the Palestinian-Israeli relationship evolving into the Palestinian-Israeli conflict is very high. At that time, it is difficult for the United States to stay out of it. The Iranian nuclear negotiations have reached an impasse and there is little chance of a turnaround. In the absence of a negotiated lifting of economic sanctions, Iran will continue to improve its nuclear capability and try to approach the so-called "nuclear threshold". The willingness of the United States and Israel to resolve the nuclear issue through military means will increase significantly. At the same time, because of Iran's domestic problems, the United States and Europe have introduced new sanctions, which has made the relationship between the West and Iran worse. More importantly, the West accused Iran of providing UAVs, missiles and other equipment to Russia. However, after nearly 10 years of strategic contraction, the deterrence capability of the United States against Iran has been greatly reduced. Iran's missile capability has exceeded the level of "low-cost containment" of the United States, while Iran's nuclear capability is at the highest level in history. The superposition of various factors makes the game between the United States and Iran intensified and escalated, which seems to be inevitable, and the risk of military conflict increases sharply. For the Israeli-Palestinian issue, it is not the issue of whether the conflict will escalate, but the conflict