US and Iran escalate strikes as ceasefire teeters on brink of collapse

The Strait of Hormuz, through which roughly a fifth of the world's oil passes, was declared closed on Thursday morning. Iran's military command announced the blockade would take immediate effect, warning that any vessel attempting passage would be targeted. The declaration came hours after the United States launched fresh strikes against Iranian military installations—surveillance systems, communications networks, and air defense sites scattered across the country. It was the latest exchange in a cycle of escalation that has brought a fragile ceasefire, agreed just two months earlier, to the edge of collapse.

The strikes began at 10:15 p.m. Wednesday night, according to US Central Command. Iran responded swiftly, with its Revolutionary Guard Corps claiming to have launched two waves of retaliatory attacks. The Guard said it had struck and destroyed eighteen military targets across three air bases in Kuwait and Bahrain, and reported a heavy missile assault on a Jordanian facility. Iran also said it had sent drones against the US Fifth Fleet in Bahrain, targeting communications and radar systems. The Americans disputed some of these claims, but the pattern was unmistakable: the two countries were trading blows across the Gulf region with increasing intensity.

The immediate consequence rippled through global energy markets. Brent crude, the international benchmark, climbed 1.7 percent to $94.68 a barrel as traders braced for the possibility of sustained conflict. The worry was not abstract. When the original crisis erupted in February, oil had spiked as high as $126 a barrel following the strait's closure. Prices have since moderated as China reduced its purchases and countries tapped emergency reserves, but analysts warned that further escalation could send crude toward $150 a barrel. Kuwait responded to what it called Iranian aggression by closing its airspace and diverting flights elsewhere. The question of whether commercial shipping could actually move through the strait remained contested—the Americans insisted vessels were transiting normally, while Iran's navy insisted the waterway was sealed and that two ships had already been struck for attempting illegal passage.

Behind the military posturing lay a negotiation that had stalled. President Trump had been pushing Tehran to agree to a sixty-day extension of the April ceasefire, to reopen the strait, and to enter talks on its nuclear program. On Tuesday, he had declared the two countries in the "final throes" of a "very good deal" that could be signed within days. By Wednesday, his patience had worn thin. He said Iran would "have to pay the price" for dragging out negotiations, and he invoked a recent incident in which an American Apache helicopter was shot down over the strait. Iran's foreign minister had suggested the helicopter incident was accidental; Trump treated it as provocation. His defense secretary, Pete Hegseth, framed the strikes as serving dual purposes—military advantage and diplomatic leverage. "If we need to negotiate with bombs, we'll negotiate with bombs," Hegseth said.

Mediation efforts led by Pakistan and Qatar had been underway for weeks, with a Qatari delegation traveling to Tehran on Wednesday to try to break the deadlock. But the gaps between the two sides remained wide. Trump's maximalist demands—a nuclear agreement, strait access, and an extended ceasefire—collided with Iran's reluctance to capitulate under military pressure. Analysts noted that the lower oil price environment, compared to earlier in the crisis, may have emboldened the White House to pursue more aggressive terms, effectively extending the conflict's duration. The coming days would be critical, according to energy analysts at Rystad. Either diplomacy would reassert itself, or the cycle would deepen into sustained escalation. The ceasefire that had held for two months was now, by any measure, on the verge of breaking entirely.