The first US-Iran exchange of fire in more than a month sent Brent crude above $90 a barrel and produced military incidents beyond the two belligerents, as a tanker was struck by projectiles leaving the Strait of Hormuz and the UAE reported intercepting a drone arriving from Iran [3][14][19]. The exchange began with US strikes on two Islamic Revolutionary Guard Corps (IRGC) rocket launchers on Larak Island on August 30, followed by Iranian ballistic missile attacks on US bases in Jordan and a drone attack on a UAE air base [3][6].

Independent tanker-tracking agency Tanker Trackers reported the daily average of crude oil exports through the Strait of Hormuz at 3.8 million barrels per day over the past seven days, compared with 9.8 million during the ceasefire period that lasted 25 days [22][26]. Brent crude rose more than 2.5 percent to $90.34 a barrel on August 31, with some outlets reporting prices above $91 [14][24][39]. The IRGC stated that a "rogue supertanker" struck two naval mines in the strait and was brought to a complete stop, warning that any vessel violating its passage rules would meet the same fate [6][11][36]. US Central Command (Centcom) stated that no ship had struck mines in the strait and called the claim "yet another IRGC attempt to intimidate regional commercial shipping through disinformation" [6][11][19]. The United Kingdom Maritime Trade Operations (UKMTO) reported a tanker was struck by three projectiles while exiting the strait east of Khasab, Oman, with no casualties reported [6][13][36].

The UAE's Ministry of Defence confirmed its air force engaged a drone detected over UAE territorial waters approaching from Iran and denied Iranian statements that Al Minhad Air Base was struck [3][6][28][29]. The UAE Foreign Ministry strongly condemned the drone incursion as a dangerous escalation, held Iran "fully responsible," and reserved the right to respond [11][15][31]. Diplomatic adviser Anwar Gargash warned that the "state of neither war nor peace" cannot persist [31]. Jordan's army stated that all eight missiles fired into its airspace were intercepted and destroyed before threatening people or property, contradicting IRGC statements of "heavy damage" inflicted on US-operated King Hussein and al-Azraq airbases [3][7][18].

Centcom described the Larak Island strike as "limited, precise action" against IRGC minelaying forces posing an imminent threat to the strait, stating that "Iran created the threat and the US military eliminated it to protect civilian mariners, commercial shipping, and the free flow of global commerce" [3][7][18][23][32]. Iran's foreign ministry condemned the strike as a "direct violation of national sovereignty and territorial integrity" and described its retaliation against US bases as "in accordance with the inherent right of legitimate defense" [6][18][19]. The IRGC said the US attack killed and wounded military personnel and civilians, with Hossein Amir Teymouri, governor of Qeshm Island, reporting two people killed and several injured [15][17][27], while Turkish media cited Revolutionary Guard sources reporting three killed and ten wounded [33]. IRGC spokesperson Sardar Mohebi called the strike "a strategic and fatal mistake" for which the US would pay in both economic and military arenas [18][27]. The IRGC also reported its air defences shot down a US MQ-9 drone over the eastern Strait of Hormuz [22][25].

President Donald Trump vowed the US would "hit them hard" and said there would be a response, while also stating Iran's military had been "completely destroyed" and that the strait was open [3][5][11][26]. Trump posted AI-generated videos on Truth Social appearing to show the destruction of Kharg Island, Iran's main oil export center, which Vice President JD Vance described as "sending a message to the Iranians" [9][11][33]. Trump said he was "not in a hurry" to bring Iran back to the negotiating table [13].

Iranian President Masoud Pezeshkian stated that Iran is not seeking war and continues to favor a negotiated end to the conflict, telling Indian Prime Minister Narendra Modi that continuing the war "is neither in our interest, nor in the interest of the region" [3][11][15][19]. Pezeshkian met Modi on the sidelines of the Shanghai Cooperation Organisation summit, where he also sought talks with Chinese officials [22][34]. A parallel mediation track is reportedly progressing, with Omani and Iranian officials describing negotiations toward a temporary joint shipping corridor and mine-clearing arrangement in Hormuz, and Pakistan's army chief Asim Munir conveying US messages offering to lift the naval blockade in exchange for reopening the strait [26][30]. The White House denied that any talks or contacts with Iran are underway and insisted the naval blockade remains fully enforced [22][26][30].

US Treasury Secretary Scott Bessent announced weekly secondary sanctions starting with banks, describing the campaign as "economic asphyxiation of this regime" [5] and predicting the Iranian economy could collapse within weeks or months [7][11][23][26]. Bessent said the renewed exchanges show Iran is "lashing out kinetically because they are losing economically" [26]. The European Union welcomed the sanctions pressure and said it was ready to take further measures to preserve freedom of navigation in the strait [11][15]. Chinese Foreign Ministry spokesman Lin Jian warned that China would take "all necessary measures" to safeguard its Iran-related interests [5]. Pezeshkian acknowledged on state television that sanctions had cut Iran's exports and imports by 25 to 35 percent, while Iranian activist Golshan Fathi said basic goods had become unaffordable for middle- and working-class families [11][39].

Analyst Trita Parsi argued that Trump appears to prefer a low-intensity conflict without major diplomatic breakthroughs or military escalation until the US midterm elections, pointing to softer-than-advertised sanctions as evidence [9][16]. US Senator Jack Reed stated that "six months later, not a single objective has been achieved," and defense analyst Paul Fraioli said sustaining the military presence and tempo necessary for a strategic effect on Iran is difficult for the US navy to do on a continuous basis [5][7]. Pentagon spokesman Sean Parnell dismissed a Washington Post report of formal objections from four-star commanders to prolonging the war, calling non-concurrence memos "standard" practice [11].

Iranian Foreign Minister Abbas Araghchi accused Israeli Prime Minister Benjamin Netanyahu of having "manipulated the American administration" into war against Iran on Israel's behalf, while Chinese state broadcaster CGTN independently labeled the Larak strike a "US-Israeli attack" [4][15]. European officials warned of economic costs from the conflict, with EU Climate Commissioner Wopke Hoekstra noting the EU imported more than 80 percent of its gas and over 95 percent of its oil, and German finance minister Lars Klingbeil planning to urge the US to end the conflict diplomatically [22][26][38]. Seven OPEC+ countries including Russia and Saudi Arabia began raising permitted oil output by 188,000 barrels per day from September [41]. Japan approved a package subsidizing transport costs for crude procured without transiting Hormuz and pushing for greater nuclear use [35]. African governments avoided publicly blaming Trump while backing UN Security Council condemnations of Iran, with Kenya cited as reworking supply chains and Ethiopia suffering fuel scarcity [40]. Venezuelan interim president Delcy Rodriguez announced a 25-year energy agreement with the US covering 17 fields with 65 billion barrels of reserves, framed as a potential counterweight to Hormuz-driven price pressure [12][24][39].

A western diplomat described the situation as "stuck" [26]. Omani Foreign Minister Badr Albusaidi expressed hope that a temporary corridor in the strait would be announced soon [30], while the White House maintains the blockade is fully enforced and the strait is open with all mines removed [30].