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Iran's Khatam-al Anbiya military headquarters announced the closure of the Strait of Hormuz to all maritime traffic, citing US violations of a war-ending deal and ongoing Israeli ceasefire breaches. The Revolutionary Guard issued a similar warning the previous day, emphasizing this as 'the first step.' The move escalates regional tensions amid a fragile ceasefire in Lebanon, where Israel refuses to withdraw from southern areas, a precondition for Iran. Analysts note Iran's strategic leverage amid US political instability under Trump, who faces internal criticism for his handling of the oil crisis. The Strait of Hormuz, a critical global oil transit route, accounts for nearly 20% of global oil exports, making its closure a significant risk to energy markets.

The announcement could trigger immediate volatility in oil prices and broader commodity markets. WTI crude futures rose nearly $1 on Friday despite a ceasefire announcement in Lebanon, highlighting market uncertainty. For forex traders, the USD/IRR pair may face pressure due to geopolitical risks and potential sanctions. Central banks, particularly the Fed, might adjust monetary policy in response to energy price spikes, indirectly affecting USD strength. The situation also tests the US-Israel alliance, with Iran seeking to exploit divisions to gain diplomatic leverage.

MENA investors should monitor developments in the Strait of Hormuz, as disruptions could impact Gulf energy exports and regional stability. The upcoming visit of US officials to Switzerland for negotiations may provide short-term clarity but risks further escalation if unresolved. Traders should watch for shifts in oil prices, USD/IRR volatility, and Fed statements on inflation. The Lebanese ceasefire's collapse remains a wildcard, with potential spillover effects on Middle Eastern markets.