Iran has accused the United States of violating the terms of a ceasefire after President Donald Trump announced a military operation called Project Freedom to escort commercial ships through the Strait of Hormuz.

Tehran says the mission breaks the ceasefire agreement, framing the naval escort operation as an act of aggression rather than a neutral passage of commerce. The US has not publicly detailed the exact terms of the ceasefire it reached with Iran, but the dispute signals the fragile state of whatever understanding was struck between the two countries.

Why the Strait of Hormuz matters

The Strait of Hormuz is one of the world's most critical shipping chokepoints. Roughly 20 percent of global oil trade passes through the narrow waterway between Iran and Oman. When ships are blocked, delayed, or threatened there, energy markets feel it almost immediately. The strait has long been a pressure point Iran uses in standoffs with the West, and any disruption to commercial navigation raises shipping costs and insurance premiums globally.

Trump's Project Freedom appears aimed at reassuring shipping companies and oil markets that the US military will physically protect vessels that have been stranded or unable to transit safely. The operation name suggests an intent to restore freedom of navigation, a principle the US has defended militarily in the Gulf region for decades.

Ceasefire in question

The timing is tense. A ceasefire between the US and Iran was apparently recent enough that its terms are still being contested publicly. Iran's protest suggests Tehran sees the naval escort mission as a military presence it did not agree to as part of any deal. The US position, implied by announcing the operation, is that protecting commercial shipping is a separate matter from any ceasefire with Iran.

The gap between those two interpretations is where the risk sits. If Iran treats Project Freedom as a provocation and responds, the ceasefire could unravel quickly. Oil markets, shipping rates, and broader risk sentiment in the Gulf region will be watching whether the escort missions proceed without incident or trigger a new confrontation.

Watch for: any Iranian naval or proxy response to the first escort convoy, official US comment clarifying what the ceasefire covers, and movement in oil futures as the operation begins.