The U.S. Army has used up much of its supply of highly accurate long-range missiles during the five-month war with Iran, according to three people familiar with the data. The reported drawdown has sparked concern about how prepared the military would be if another major conflict emerged in the near term.

The issue centers on precision weapons designed to hit targets at long distances, a key part of modern warfare. When those stocks fall sharply, military planners can face harder choices about sustaining current operations while keeping enough weapons in reserve for other threats.

Sources said the scale of the use was so large that it has raised broader questions about U.S. readiness beyond the Iran war itself. A heavy reduction in long-range precision missile inventories could complicate planning for future crises and increase pressure to rebuild supplies quickly.

The reported depletion also highlights how a prolonged, high-intensity conflict can strain even advanced arsenals. For Washington, the situation appears to underscore the challenge of balancing active wartime demands with the need to maintain credible stockpiles for future contingencies.