Security official says Tehran to set up 'restricted zone' near Stait of Hormuz for merchant ships

# Analysis Iran's announcement of a restricted maritime zone near the Strait of Hormuz represents a direct threat to one of the world's most critical energy arteries, through which roughly 21 percent of global petroleum passes daily. By creating barriers to merchant shipping, Iran is weaponizing its geographic chokepoint to retaliate against international sanctions and assert regional power, a tactic that could immediately spike oil prices and disrupt supply chains already fragile from geopolitical tensions and recent conflicts. The move will likely prompt naval responses from the United States and its allies, who view freedom of navigation through international waters as non-negotiable, setting conditions for direct military confrontation rather than de-escalation. Insurance costs for vessels transiting the region will spike, shipping routes may reroute around Africa at enormous cost and time penalty, and any actual seizure or attack on commercial vessels could trigger cascading economic effects across manufacturing, transportation, and consumer prices globally.