US and Iran Return to War as Hormuz Truce Collapses
Nine consecutive nights of American strikes, US troop deaths in Jordan and Iraq, and a strait shut to tankers mark the failure of the June memorandum, with oil near 91 dollars and no direct talks in sight.
By Siyu Xiang · July 20, 2026 · 8 min read

The ceasefire that was supposed to end the war between the United States and Iran is dead in all but name. American forces have now struck Iranian territory on nine consecutive nights, Iran has answered with missile barrages that have killed US service members in Jordan and Iraq, and the Strait of Hormuz, the channel that carries roughly a fifth of the world's oil, has seen no tanker traffic since July 15. The memorandum of understanding signed by the two countries' presidents in mid June, meant to freeze the fighting while a 60 day negotiation resolved the war, has instead become the object over which the war reignited. This account draws on statements from US Central Command and the White House, Iranian official and state affiliated announcements, and shipping and market data, with the caveat that independent verification inside Iran remains extremely limited.
The June memorandum bought a genuine pause. By industry estimates, roughly 200 million barrels of crude moved through the Strait of Hormuz during the truce's first three weeks, and the document, built around a 14 point framework for keeping the waterway open, envisioned two months of talks covering the strait, Iran's nuclear program, and a wider peace. The diplomacy never matured: only two days of direct talks took place, with the remainder confined to lower level technical contacts, and Israel's continuing fight with Hezbollah in Lebanon, despite a separate US brokered ceasefire there, hung over the process as a persistent grievance on the Iranian side.
The unraveling accelerated in early July. After Iran struck commercial vessels near the strait, US Central Command announced that it had hit more than 80 Iranian targets and the administration reimposed sanctions on Iranian oil sales. Speaking at a NATO summit in Turkey on July 8, President Trump declared the ceasefire over, and a second wave of roughly 90 strikes followed against air defenses, coastal surveillance, missile and drone storage, and naval and logistics sites. On July 13 the White House notified Congress that limited military action had resumed; that same day the United Arab Emirates said Iranian missiles had struck two tankers in Omani waters, killing a crew member, and Central Command announced the resumption of a naval blockade of Iranian ports. Jordan reported intercepting Iranian missiles, and the de facto truce between Saudi Arabia and Yemen's Houthis frayed in parallel. Subsequent nights brought a 90 minute bombardment of Greater Tunb Island in the Persian Gulf and precision strikes around Bandar Abbas, with Central Command describing the targets as command centers, air defenses, missile and drone capabilities, and coastal surveillance assets.
The past several days turned the confrontation lethal for American forces at a pace not seen since the war's opening phase. On Friday the US military announced that two service members had been killed in an Iranian attack in Jordan, and on Saturday it reported the death of another in Iraq. Overnight into Monday local time, Iranian state affiliated media reported American strikes across a strikingly wide arc of the country: the northwestern city of Tabriz, Chabahar and Konarak on the Gulf of Oman, Bandar Mahshahr and Bandar Imam Khomeini on the Persian Gulf, Jask and Sirik along the strait, and the port city of Bushehr. Iran claimed a new wave of missile launches in response. Iranian casualty figures and battle damage inside the country cannot be independently confirmed, and both governments have incentives to shape the record; the geographic breadth of the reported strikes, however, indicates a campaign no longer confined to the coastal zones near the strait that dominated earlier rounds.
The war's most measurable effects are flowing through the world's energy arteries. Shipping analysts report that no tankers have transited the Strait of Hormuz since July 15, down from 32 vessels as recently as July 10; in one attempted passage early last week, two large crude carriers moved roughly 4 million barrels through while two others were badly damaged. Brent crude rose about 3 percent on Sunday to roughly 90.78 dollars a barrel, with the US benchmark near 84.85, and the disruption is reaching American households: the national average price of gasoline has climbed past 4 dollars a gallon, eclipsing last year's average of just over 3. Each side frames the chokepoint as the other's hostage. Washington casts its campaign as the defense of freedom of navigation and civilian mariners against Iranian attacks on shipping; Tehran casts the American blockade and strikes as aggression that voids any obligation to keep the waterway open.
The official rhetoric leaves little room for an early return to the table. Central Command has framed each round as an effort to hold Iran accountable for attacks on commercial shipping and to degrade its ability to threaten the strait, while the president has publicly warned that further Iranian action would be answered harder still, at one point suggesting that critical civilian infrastructure such as power and desalination plants could be targeted. On the Iranian side, parliamentary speaker Mohammad Bagher Ghalibaf has vowed that American strikes will be met blow for blow, and Tehran has claimed hits on US military sites in Bahrain and Kuwait, claims Washington has not confirmed. Regional intermediaries, by multiple accounts, continue to carry messages between the parties, and Iran has acknowledged ongoing contact through mediators, but there is no public indication of renewed direct negotiation. It bears remembering how the war began in late February: with American and Israeli strikes that killed Iran's supreme leader and much of its senior command, a founding shock that shapes Tehran's insistence that it cannot be seen to capitulate.
Two structural facts explain why this ceasefire failed and why the next one will be harder. First, the memorandum attempted to freeze a battlefield that includes a global chokepoint, which means every incident at sea, whatever its origin, doubles as a violation with worldwide economic consequences; a truce whose currency is tanker traffic can be broken by a single missile. Second, the diplomacy was thinner than the document. Two days of direct talks in five weeks is not a negotiation, and with Iran's leadership decimated since February and Washington publicly committed to escalation dominance, neither side has built the political machinery that de escalation requires. The pattern of the past two weeks, strike, retaliation, wider strike, is the textbook grammar of escalation, and the movement of American attacks deep beyond the coastal zone suggests the target list is growing, not shrinking.
The outlook divides into the grim and the merely costly. The grim scenario is continued expansion: attacks on civilian infrastructure, Iranian pressure through regional proxies from Lebanon to Yemen, and a strait closed long enough to push oil well past current levels, a trajectory whose costs would land on economies far from the battlefield, including at every American gas pump. The costlier but survivable scenario is a return to something like the June framework, likely brokered by the regional intermediaries still shuttling messages, once both sides conclude that the strait's closure hurts them more than a compromise would. History offers a narrow reed of hope here: both governments signed a ceasefire once, which means both have already accepted, in principle, that this war ends at a table. The question the ninth night of strikes poses is how much more will burn before they sit back down at it. For readers in Washington, the war's most immediate measure is the one on the corner sign: a national gas average above 4 dollars, and climbing.