Interim U.S.-Iran Arrangement Takes Effect Amid Nuclear and Maritime Disputes

The interim arrangement between the United States and Iran is now active, shifting the conflict toward a diplomatic implementation phase. However, the agreement is currently structured as a memorandum of understanding rather than a final treaty, with a formal signing ceremony in Geneva anticipated shortly. Vice President J.D. Vance is expected to lead follow-up efforts to transition this framework into a durable settlement. Despite the initial lull in hostilities, the agreement faces immediate friction over the Strait of Hormuz, where Iranian negotiator Mohammad Bagher Ghalibaf has claimed the right to collect transit fees, contradicting the deal’s early promise of free passage. On the security front, President Trump has maintained a hardline stance, publicly stating that the U.S. is prepared to resume bombing and blockades if Tehran is judged to be in violation of the agreement. The nuclear file also remains open-ended; while the current text requires Iran to dilute its stockpile of highly enriched uranium under international supervision, several technical commitments regarding procurement and development have yet to be finalized. Regional tensions continue to complicate the bilateral thaw. Continued fighting between Israel and Hezbollah in Lebanon remains a significant flashpoint, as Israel has rejected Iranian claims that the agreement should cover the Lebanon conflict. Domestically, the Trump administration has linked the success of the diplomacy to global market stabilization and lower oil prices, though the deal has already drawn criticism from some conservatives who argue the terms are overly favorable to Tehran.