Global oil prices surged and stock markets plummeted after Donald Trump announced plans to intensify military strikes against Iran without a clear timeline for ending the conflict.The US president questioned the priority of reopening the Strait of Hormuz and threatened to withdraw from NATO while criticizing allies for lack of support during the escalation.Financial analysts warned of sustained economic volatility as gasoline prices in the USA surpassed four dollars per gallon following the disruption of critical energy supply routes.