Iran War Spreads to Red Sea and Caspian as US Halts Strikes

The Iran war showed signs of widening this weekend despite a pause in U.S. military strikes, as Yemen's Iran-aligned Houthis struck Saudi oil installations along the Red Sea coast and Iran accused Ukraine of attacking an Iranian commercial vessel in the Caspian Sea. The U.S. military confirmed its naval blockade against Iran remains fully in effect but did not explain why it halted a streak of 13 consecutive nights of escalating airstrikes, raising questions about the trajectory of the conflict.

Houthi Attacks on Saudi Oil Infrastructure

Houthi military spokesperson Yahya Saree announced that the group targeted sites belonging to Saudi state oil company Aramco in the cities of Jizan and Yanbu. Verified video footage shared on social media showed a large column of smoke rising from the direction of the Aramco refinery in Jizan, near the Yemeni border. Two Asia-based trading sources said they had been informed of potential damage to fuel and oil storage sites at Jizan, though Aramco did not respond to requests for comment. In Yanbu, Saudi Arabia's main Red Sea oil port, two ballistic missiles aimed at oil installations were intercepted by a U.S.-made Patriot battery operated by Greek military personnel under an agreement with Riyadh, according to Greek security sources. Yanbu has become a key route for Saudi oil exports, bypassing the Strait of Hormuz, which Iran has effectively blockaded amid the wider conflict.

Ukraine Accused in Caspian Sea Incident

Separately, Iran's Foreign Ministry accused Ukraine of attacking an Iranian commercial vessel in the Caspian Sea, alleging the attack caused an explosion that killed a sailor and injured another. Earlier on Saturday, Ukrainian President Volodymyr Zelenskiy praised on social media the results of "long-range strikes" in the Caspian Sea, alluding to vessels shipping military cargo, but did not specify the nationality of the targets. The incident marks a new theater in the conflict, as the Caspian Sea had previously remained relatively calm compared to the Persian Gulf and Red Sea.

US Pause in Airstrikes Raises Questions

The pause in U.S. airstrikes, which had been conducted nightly for nearly two weeks, came as a surprise. A senior administration official said President Donald Trump has always preferred diplomacy but has shown Iran the consequences of not engaging seriously. The New York Times reported that Trump and his advisers decided to scale back the strikes due to concerns about expanding the conflict, depleting defense stockpiles, alienating Persian Gulf allies, and disrupting energy supplies and the global economy. No Iranian attacks on neighboring countries were reported on Saturday, a departure from the daily retaliatory strikes that had been occurring.

Yemen's Civil War Reignites

The fighting between the Houthis and Saudi Arabia also threatens to reignite Yemen's civil war, which had been paused under a fragile ceasefire since 2022. The Saudi-backed Yemeni government air force launched strikes on Houthi launch sites and arms depots in Marib and al-Jawf provinces. Earlier, the Saudi-led military coalition bombed Houthi positions in the Red Sea port of Hodeidah. Both sides are mobilizing forces along front lines, signaling a potential return to full-scale conflict in Yemen, where hundreds of thousands have died from fighting and famine over the past decade.

The escalation along the Red Sea coast threatens to disrupt a second major shipping route, as the Houthis have declared a naval blockade of Saudi Arabia. With the Strait of Hormuz already disrupted by Iran's blockade, energy markets face increasing pressure. The war's expansion into the Caspian Sea adds a new dimension, potentially drawing in more actors. As the U.S. reassesses its military strategy, the coming days will be critical in determining whether the conflict de-escalates or broadens further.