A rapid and dangerous escalation between the United States and Iran unfolded on Tuesday and Wednesday, as the two countries exchanged military strikes across the Gulf region following the downing of a US Army Apache helicopter near the Strait of Hormuz — the narrow waterway between Iran and the Arabian Peninsula through which roughly a fifth of the world's oil passes. US Central Command (CENTCOM) announced it had launched what it called "self-defence strikes" against Iranian radar systems, air defence facilities, and ground control stations along the strait's coastline, targeting sites on Qeshm Island and in the port towns of Sirik and Jask. Explosions were also reported near Bandar Abbas. The operation lasted approximately four hours before CENTCOM announced its conclusion.

The trigger was the crash of an AH-64 Apache helicopter in the early hours of Tuesday, which went down off the coast of Oman during a patrol. President Donald Trump declared on his Truth Social platform that Iran had "shot down" the aircraft, vowing retaliation. A US official told CBS News it was unclear whether an Iranian drone struck the helicopter intentionally or whether the collision was accidental; official statements described the incident as under investigation. Both crew members were rescued after spending roughly two hours in the water, retrieved by an unmanned drone boat — the Corsair, a 24-foot vessel from Task Force 59 — in what CENTCOM described as the first known drone rescue at sea by the US military.

Iran's Islamic Revolutionary Guard Corps (IRGC) responded swiftly with drone and missile attacks on US military installations across three neighbouring countries. The IRGC said it struck the US Fifth Fleet headquarters in Bahrain, the Ali Al-Salem airbase in Kuwait, and launched long-range missiles at the Al-Azraq airbase in Jordan — a remote desert installation in Zarqa governorate in eastern Jordan — claiming to have attacked 21 American targets in total and destroyed four, including an F-35 fighter jet hangar. Jordan's military said it intercepted and shot down five Iranian missiles, reporting no casualties or structural damage. US officials told Reuters that nearly all Iranian projectiles were intercepted. Air raid sirens sounded in Bahrain and Kuwait, whose military confirmed its air defences were engaging "hostile aerial targets." Iran also claimed to have shot down a US MQ-9 drone over the Iranian city of Jam.

Both governments signalled that, despite the ferocity of the exchange, they were not seeking a full return to open war. CENTCOM described the US strikes as "a proportional response to unjustified Iranian aggression," and a US official said the strikes were intended as a warning, not an attempt to derail ongoing peace negotiations. Trump said in a Wall Street Journal interview that the helicopter incident "wasn't a big deal" and simultaneously expressed optimism that a deal with Tehran could be reached within "two or three days." Iranian Foreign Minister Abbas Araghchi warned that Iran "will leave no attack or threat unanswered" and urged foreign forces to "leave our region if you want to be safe," while Tehran's chief peace negotiator posted a pointed warning on social media that Iran "speaks other languages far more fluently" than diplomacy if commitments were broken.

The new escalation adds serious strain to a fragile ceasefire agreed in April between Washington and Tehran, which itself followed the outbreak of war on 28 February when the US and Israel launched coordinated strikes on Iran. Analyst Trita Parsi of the Quincy Institute for Responsible Statecraft said Iran's rapid counter-strikes reflected a deliberate new doctrine: respond to every US attack quickly and proportionally to prevent Washington from establishing impunity. "Every time these events have occurred, the sense I have gotten from both sides is that their confidence and their trust in the ability of reaching a deal is starting to diminish," he said. Oil prices rose roughly one percent in early Asian trading following the exchange, as prospects for reopening the Strait of Hormuz — which Iran has virtually blockaded since the war began — dimmed further.