US depletes THAAD interceptor stockpile during Israel-Iran war

In June 2025, a significant military conflict unfolded as Israel engaged in a 12-day war with Iran, witnessing substantial exchanges of ballistic missile fire. The United States played a critical role in supporting Israel, employing advanced air defense systems to counteract Iranian missile attacks. During this period, US forces utilized approximately 25% of their THAAD missile interceptors, reportedly firing more than 100 to 150 interceptors in a bid to protect Israeli territories. This usage raises concerns about the sustainability of the US's missile defense capabilities and its future engagements in conflicts. As a result of this operation, experts have highlighted an urgent need for the US to bolster its THAAD interceptor inventory and production capabilities. With only seven THAAD systems available to the US, the conflict exposed vulnerabilities in the defense industrial base. The Department of Defense has indicated plans for future acquisitions of THAAD interceptors, with 37 projected for the 2026 budget. However, the current production rate may not suffice to meet ongoing and emerging threats. In conjunction with this issue, the analysis of the conflict revealed that while the majority of Iranian missiles were intercepted, some successfully struck populated areas in Israel. Israeli Defense Forces stated that over 500 long-range ballistic missiles were launched by Iran, with around 86% intercepted. Nevertheless, there were significant challenges as Iran adapted its missile strategy, utilizing more advanced weapons as the conflict progressed. This situation represents a profound commitment by the US to assist an ally, yet it raises alarms regarding the long-term implications of ongoing uses of THAAD stockpiles. With military supplies dwindling, a compelling argument has emerged for the need to scale up production while managing the balance between supporting allies and protecting domestic defense capabilities.