The American Defence Secretary, Leon Panetta has again warned Iran against any attempt to block the Strait of Hormuz, the main route for oil exports from the Gulf.
Why is Iran trying to block the Strait of Hormuz? Iran has threatened to cut off the waterway if sanctions are imposed on its oil exports because of its nuclear ambitions.
Why is the Strait of Hormuz important for US? It is the main route for oil exports from the Gulf.
The top US military officer, the Chairman of the Joint Chiefs of Staff General Martin Dempsey acknowledged that Iran has the ability to close the route for a short time.