John Mearsheimer - Offensive Realism John Mearsheimer - Offensive Realism

We Can't Help Saudi Arabia | Ask the Professor

Oct 14, 2026 · 9m

Summary

John Mearsheimer explains that U.S. support for Saudi air defenses fails not due to a lack of will, but because modern offensive missiles and drones overwhelm defensive systems. He cites Israel and Ukraine to illustrate that even with abundant U.S. aid, defenders cannot intercept all incoming attacks. Mearsheimer argues the cost exchange ratio favors attackers, making it impossible for the U.S. to protect Gulf allies or rebuild regional bases against Iran's growing arsenal.

Topics discussed

Introduction and Sam's question on Saudi air defense Context: US-Saudi relationship and weaponry sales Timeline of conflicts with Iran and Houthis The general problem of modern air defense limitations Case study: Israel's struggles in the 12-day war Case study: Israel's struggles in the 40-day bombing campaign Case study: Ukraine's shortage of defensive missiles Analysis: Offensive vs. defensive cost exchange ratios Conclusion on the current situation in Saudi Arabia Future outlook: US inability to defend Gulf bases and allies Final summary: Lack of capability rather than will
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