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Grand strategy, Burden sharing, and Foreign and defense policy

Christopher McCallion

Fellow

Christopher McCallion is a fellow at Defense Priorities.

McCallion focuses on issues in grand strategy, IR theory, U.S. foreign policy, and technological competition. His work has appeared in POLITICO, Newsweek, The National Interest, and CNN among others. He was formerly an adjunct lecturer in political science at Hunter College, City University of New York, and holds an MSc in Theory and History of International Relations from the London School of Economics and Political Science.

Op-edUS‑Israel‑Iran, Basing and global posture, Iran, Middle East, Military analysis

Iran war shows U.S. bases overseas are a liability

By Christopher McCallion

October 18, 2026

The costs of the war in Iran continue to rise. The U.S. death toll now stands at 21 service members, […]

Op-edGrand strategy, Israel‑Iran, Middle East

The U.S. foreign policy problem

By Christopher McCallion

October 10, 2026

ExplainerUkraine‑Russia, Europe and Eurasia, Ukraine

The role of moral hazard in the Ukraine war

By Christopher McCallion

August 18, 2026

More from Christopher McCallion

Op-edUS‑Israel‑Iran, Basing and global posture, Iran, Middle East, Military analysis

Iran war shows U.S. bases overseas are a liability

By Christopher McCallion

October 18, 2026

Op-edGrand strategy, Israel‑Iran, Middle East

The U.S. foreign policy problem

By Christopher McCallion

October 10, 2026

ExplainerUkraine‑Russia, Europe and Eurasia, Ukraine

The role of moral hazard in the Ukraine war

By Christopher McCallion

August 18, 2026

Op-edCuba, Western Hemisphere

Trump Shouldn’t Make Another Iran Mistake in Cuba

By Christopher McCallion

August 17, 2026

Op-edUS‑Israel‑Iran, Iran, Middle East

The U.S. should cut its losses in Iran

By Christopher McCallion

August 7, 2026

Op-edUS‑Israel‑Iran, Iran, Middle East

Time To Abandon Coercion As America’s Default Strategy

By Christopher McCallion

July 25, 2026

Christopher McCallion Past Events

virtualWestern Hemisphere

What’s next for U.S. foreign policy in 2026? Western Hemisphere Edition

January 14, 2026
virtualVenezuela, Western Hemisphere

Perils of regime change in Venezuela and beyond

October 28, 2025
virtualMiddle East, Basing and global posture, Diplomacy, Houthis, Iran, Iraq, Israel, Israel‑Hamas, Military analysis, Syria

Trump in the Middle East: Impacts, implications, and alternatives

May 16, 2025
virtualUkraine‑Russia, Diplomacy, Europe and Eurasia, Military analysis, Russia, Ukraine

Ukraine’s critical choice: Pursue peace or fight on

April 16, 2025
virtualUkraine‑Russia, Europe and Eurasia, Russia, Ukraine

Trump and Ukraine: Prolonging or ending the war

December 13, 2024
virtualNATO, Alliances and commitments, Europe and Eurasia, Russia, Ukraine, Ukraine‑Russia

A ‘bridge’ to NATO or false hope for Ukraine?

July 12, 2024

Christopher McCallion Featured Symposia

symposiumWestern Hemisphere

Americas first: A shift to hemispheric defense

February 10, 2026

symposiumGrand strategy

Realistic recommendations for Trump II

January 13, 2025

symposiumNATO, Alliances and commitments

Antique alliance: Rethinking NATO at 75

July 2, 2024