President Trump declared Wednesday at the NATO summit in Ankara that the ceasefire between the US and Iran is over, calling Iranian leaders "scum" and "sick people," and saying he no longer wants to deal with them. This came roughly three weeks after the US and Iran signed the memorandum of understanding that had halted the fighting, lifted the US naval blockade, and reopened the Strait of Hormuz.

The immediate trigger was a fast-moving exchange over the preceding days. Tuesday saw Iranian attacks on three commercial ships in the Strait of Hormuz, prompting US Central Command to respond with what it called offensive strikes on more than 80 targets, including over 60 IRGC small boats. Iran's Revolutionary Guard then said it retaliated by attacking 85 US military sites in Bahrain and Kuwait, both Gulf states hosting American bases. That exchange escalated further into a second consecutive day of US strikes on Wednesday. Hours before Trump's declaration, the Treasury had also revoked the sanctions waiver that had allowed Iranian crude exports, cutting short what was supposed to run through August.

Trump floated several concrete escalatory steps alongside the ceasefire declaration, reimposing the US naval blockade on Iranian shipping, launching further strikes, and even potentially taking control of Kharg Island, Iran's main oil export terminal. Notably, though, he didn't fully close the door on diplomacy, saying negotiators Steve Witkoff and Jared Kushner could keep talking if they wanted, even while calling the effort "a waste of time" and describing Iran as unreliable. Iran, for its part, has not explicitly declared the MoU dead either, despite accusing Washington of violating several of its articles, and Al Jazeera's reporting from Tehran suggested there may still be a Gulf-led diplomatic push to bring both sides back to the table.

Markets reacted immediately and sharply. Oil surged over 4 to 5 percent on the news, with Brent briefly touching $80 a barrel intraday before settling lower, and US and European equities fell broadly the same day on the combination of war risk and reignited inflation concerns. This reverses weeks of market pricing that had treated de-escalation as the base case, shipping traffic through Hormuz recovering, oil sliding toward multi-month lows, and analysts debating support levels in the high $60s rather than escalation scenarios.

There's also a domestic political dimension worth noting, this leaves Trump's approval ratings and his party in a difficult spot four months ahead of the midterm elections, given a conflict that's been unpopular with the American public since it began in February. Analysts at the Institute for the Study of War argued the recent US strikes don't appear to be changing Iran's underlying strategy in the strait, describing Iran's actions as an attempt to pressure Gulf neighbors into ceding it control over the waterway after failing to secure that through negotiation.

For anyone tracking oil, gold, or broader Middle East linked risk assets on Gate, the key thing to watch now is whether the diplomatic channel Witkoff and Kushner are reportedly still pursuing manages to reopen before further strikes occur, since the gap between "ceasefire declared over" rhetorically and an actual full collapse of the MoU's provisions, naval blockade, strait access, ongoing talks, remains the difference between a contained flare-up and a genuine return to open conflict.