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Stacie Pettyjohn

Stacie Pettyjohn

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Senior Fellow & Director, Defense Program, CNAS; U.S. force design, airpower, posture and wargaming.

US Deploys Ukrainian Drone Interceptors to Middle East
Social•Mar 9, 2026

US Deploys Ukrainian Drone Interceptors to Middle East

The US Army is rushing Ukrainian cheap drone interceptors to the Middle East, which is a hugely welcome development. These are cost-effective, battlefield-tested solutions for defeating Shaheds & should proliferate quickly. https://t.co/bfY0oYf45R

By Stacie Pettyjohn
Allied Production Needed as U.S. Defense Gears for Short Wars
Social•Mar 6, 2026

Allied Production Needed as U.S. Defense Gears for Short Wars

U.S. defense industry is built for short, sharp wars not long ones. New from @jlmcardle01 in the @CNASdc New American DIB series: allied manufacturing can close the gaps domestic industry can't fill fast enough. Timely w/expenditure rates against Iran. https://t.co/TInxSDERsE

By Stacie Pettyjohn
U.S. Wins Iran Fight, Yet Readiness for China Falters
Social•Mar 6, 2026

U.S. Wins Iran Fight, Yet Readiness for China Falters

@PhilSheers & I in a new @CNASdc insight: The U.S. is defeating Iran militarily. But military success doesn't guarantee strategic success & Epic Fury is draining the readiness we'd need most against China. https://t.co/6opfwY0d7o

By Stacie Pettyjohn
Key Takeaways on Iran Air War From Breaking Defense
Social•Mar 4, 2026

Key Takeaways on Iran Air War From Breaking Defense

Had a great time with the @BreakingDefense team talking about the air war against Iran. A few conversations worth your time. 🧵

By Stacie Pettyjohn
Airborne Battle Management Essential Across All DoD Priorities
Social•Mar 3, 2026

Airborne Battle Management Essential Across All DoD Priorities

New @CNASdc report: In "Eyes in the Sky," @PhilSheers explains why airborne battle management aircraft aren't just vital in the Middle East—they're essential for DoD's top priorities, from a war with China to defending the homeland. https://t.co/y2xBWinnY5

By Stacie Pettyjohn
US Defenders Easily Neutralize Small Drone Swarms
Social•Mar 3, 2026

US Defenders Easily Neutralize Small Drone Swarms

Defeating 1 or 2 drones isn't hard for skilled air defenders. The US military is the best in the world at it. @molkathcam & I examined past operations in the Red Sea and Iraq/Syria operations for our @CNASdc...

By Stacie Pettyjohn
Trump's New Unilateral War Bypasses Debate and Congress
Social•Mar 2, 2026

Trump's New Unilateral War Bypasses Debate and Congress

No ultimatums. No congressional votes. No defined endgame. Trump has established an entirely new American way of war that breaks from decades of U.S. policy. Trump's norm is a new form of unilateralism that eschews debate at home & abroad.

By Stacie Pettyjohn
New CNAS Report Warns of Taiwan's Hellish Future
Social•Feb 27, 2026

New CNAS Report Warns of Taiwan's Hellish Future

Many thanks to @TheBaseLeg for highlighting @molkathcam & my new @CNASdc report on a Hellscape for Taiwan in @BreakingDefense https://t.co/qdUJFvpsrx

By Stacie Pettyjohn
El Paso Drone Shootdown Underscores Counter‑Drone Implementation Challenges
Social•Feb 20, 2026

El Paso Drone Shootdown Underscores Counter‑Drone Implementation Challenges

New from @BreakingDefense by @michaeldmarrow & @ValerieInsinna: The El Paso shootdown highlights the hard work ahead to safely implement new counter-drone authorities for DoD, DHS, & local agencies. https://t.co/d1WSmDnBAi

By Stacie Pettyjohn
How Ukraine and Russia Adapted Their Wartime Strategies
Social•Feb 18, 2026

How Ukraine and Russia Adapted Their Wartime Strategies

Excellent episode of the @CSIS Russian Roulette podcast on Ukrainian and Russian wartime adaptations with @maxbergmann, @MSnegovaya, @MassDara, and Kateryna Bondar 🎧 https://t.co/AEjQc49Rt1

By Stacie Pettyjohn
US Deploys Advanced Missiles to Philippines, Bolstering 1st Island Chain
Social•Feb 17, 2026

US Deploys Advanced Missiles to Philippines, Bolstering 1st Island Chain

🧵 The U.S. will deploy its "cutting-edge missile and unmanned systems" to the Philippines, a step in strengthening force posture inside the 1st island chain. Beijing isn't happy — that's the point. A welcome sign given the NDS's softer tone on...

By Stacie Pettyjohn