As tensions escalate with Iran, the United States is racing to complete its mission before depleting its munitions. Recent Iranian missile attacks have raised concerns regarding the resilience of U.S. missile interceptors, with military analysts warning that prolonged conflict could strain existing stockpiles and put American troops at risk. The situation is compounded by defense shortages that may influence strategies against Iran. In addition, fears have emerged that ongoing military actions could jeopardize air defense systems not only in the Middle East but also in Ukraine and Israel. The Pentagon has indicated that a sustained war with Iran could severely test its escalation control capabilities and may highlight a pressing need for technologies such as directed-energy weapons. The current circumstances prompt urgent discussions about the adequacy of U.S. air defenses and their ability to handle simultaneous conflicts.