The Three Major Fault Lines in the U.S.-Iran Agreement—Why “Permanent Ceasefire” May Not Be Forever?

News on June 14 that the U.S. and Iran reached a peace agreement sent global assets into a celebration frenzy, but the four words “permanent ceasefire” sound beautiful—yet it is hard to make them real.

The first fault line: the absence of an implementation and compliance mechanism. Who will oversee the opening of the Strait of Hormuz? If Iran privately supports proxy forces such as Hezbollah in Lebanon, what countermeasures does the U.S. have? The 60-day negotiation period will determine whether these issues can be resolved in a substantive way, but Iran has already made its position clear: Iran’s armed forces “have always been keeping their finger on the trigger,” and once “the other side breaches the agreement,” they will immediately take corresponding measures—this is not a partner to a peace agreement, but a warning that they could resume fighting at any time.

The second fault line: Israel’s hardline opposition. Israel will most likely seek to undermine the agreement’s implementation through covert operations or lobbying Congress. On the very day the agreement was announced, Israel carried out an airstrike on the southern suburbs of Beirut, Lebanon—the death toll was at least 3, with 15 people injured. The choice of this timing targets the agreement process directly. Strategic disagreements between the U.S. and Israel at the policy level will further increase the complexity of the situation in the Middle East.

The third fault line: the risk of a U.S. administration change. In 2026, after the U.S. midterm elections, the new Congress may re-evaluate the agreement. On Polymarket, in contracts about whether the Iranian regime will fall before 2027, the price of “no” is still 89.5%, with trading volume close to $20.1 million—market pricing with hard cash reflects deep distrust in the long-term stability of Iran.

The fault lines in this agreement are deeper than most people imagine. In the short term, risk appetite fully rebounds, and in the medium to long term the logic chain of “advancing the agreement → liquidity easing → crypto bullishness” holds; but once the agreement breaks down, because the crypto market trades 24 hours a day, it may see more violent waterfall-style selloffs than traditional markets. The peace agreement opened the door to celebration, but no one knows when that door might suddenly close.

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