In the Persian Gulf on September 5th, the United States struck Iranian oil tankers in direct retaliation for Iranian missile attacks on American naval vessels — choosing to answer military force with economic consequence by targeting the arteries through which Iran moves its petroleum to the world. The deliberate positioning of strikes near Iran's oil-export infrastructure signals that this conflict has crossed into a new register, one where energy assets and commercial vessels become instruments of strategic pressure. Humanity has long understood that wars are fought not only on battlefields