Blockade

The US is building up its military forces in the Middle East in an attempt to convince Iran not to attack Israel but once these forces start firing property will be destroyed and lives lost. It would be better if the US just announced it would blockade all oil shipments from Iran. This would place extreme economic pressure on Iran since oil and gas represents 40% of a Iran's exports. This is easily done by closing down access through the Straits if Hormuz. The US could then say as the next step they would damage the export facilities on Khark Island which is a small island off the coast of Iran where all the oil and gas ships are loaded.