Israel Is Running Low on Missile Interceptors. What's Next?

Key Concepts:

• Aero Interceptors (specifically Arrow 3): Missiles used to intercept ballistic missiles.
• Interceptor Capacity vs. Capability: The amount of interceptors available versus the effectiveness of each interceptor.
• Layered Defense: Multiple systems working together to intercept incoming threats.
• Ballistic Missiles: Missiles that follow a ballistic trajectory to deliver a payload.

Israel's Missile Defense and Interceptor Capacity

• Effectiveness vs. Capacity: While Israel's missile defense systems have proven highly effective (approximately 90% interception rate for ballistic missiles), the primary concern is the limited capacity of interceptors, particularly Arrow 3. As Tom Kerico (CSIS) stated, "the capability is not the question it's the capacity that matters."
• Interceptor Shortage: A US official and analysts indicate that Iran possesses more missiles than Israel and the US have interceptors, raising concerns about long-term defense capabilities.
• Arrow 3 Interceptors: These interceptors are crucial for neutralizing ballistic missiles. However, they are complex and expensive (over $2 million per unit) and take time to manufacture.
• Production Deal: In December, Israel's defense ministry made a deal with IIA to increase Arrow 3 production, but this is a long-term solution.

US Support and Limitations

• US Augmentation: The United States has been bolstering Israel's defenses for months, recognizing the interceptor capacity issue.
• Limited US Resources: US interceptor resources are also finite, meaning the US cannot indefinitely sustain Israel's defense.

Long-Term Concerns and Recommendations

• Unsustainable Defense: Analysts emphasize that prolonged missile interception is not a sustainable strategy for either Israel or the US.
• Need for Swift Resolution: Officials need to act quickly to end the conflict, as neither country can afford to continuously intercept missiles over an extended period.