US forces struck Iranian rocket launchers on Larak Island in the Strait of Hormuz on Sunday, a US official said, according to France 24. It is the first known US military action against Iran in about a month, since late July, according to the BBC.
Iran's Islamic Revolutionary Guard Corps said the strike killed and wounded several of its fighters as well as civilians, and vowed to punish those responsible, France 24 reported. Residents reported hearing an explosion near the island, Iran's semi-official Fars news agency said, cited by Reuters.
Why it matters: Larak sits inside the Strait of Hormuz, the chokepoint that Gulf oil tankers must pass through, so a US-Iran exchange of fire there puts one of the world's most sensitive shipping lanes at risk.
Hypothesis: the month-long gap since the last known clash suggests an informal de-escalation had been holding, and this strike signals it is now under strain. Supporting this: both the BBC and France 24 frame Sunday's strike as the first in weeks, and Tehran's vow to retaliate points toward renewed confrontation rather than a one-off. Against it: neither source confirms a formal truce ever existed, so the lull could simply reflect reduced Iranian activity rather than any agreement, and this strike may prove isolated rather than a new cycle.