Joshua Geltzer

ASU Future of War Fellow

Joshua Geltzer, ASU Future of War Fellow, is writing a book exploring challenges associated with modern communications technologies such as social media platforms, file-upload sites, and internet search engines.  He is the executive director and visiting professor of law at Georgetown University Law Center's Institute for Constitutional Advocacy and Protection.  

From 2015 to 2017, he served as senior director for counterterrorism at the National Security Council staff, having served previously as deputy legal advisor to the National Security Council and as counsel to the assistant attorney general for national security at the Department of Justice.  He also served as a law clerk to Justice Stephen Breyer of the U.S. Supreme Court and, before that, as a law clerk to Chief Judge Alex Kozinski of the Ninth Circuit Court of Appeals.  

Josh received his J.D. from Yale Law School, where he served as editor-in-chief of the Yale Law Journal, and his PhD in War Studies from King’s College London, where he was a Marshall Scholar.  Before that, he attended Princeton University, majoring in the Woodrow Wilson School of Public and International Affairs.  He is the author of US Counter-Terrorism Strategy and al-Qaeda: Signalling and the Terrorist World-View, published by Routledge; and his work has appeared in The Atlantic, Foreign Policy, ParametersStudies in Conflict & Terrorism, the Journal of Constitutional Law, and the Berkeley Journal of International Law.

All Work

Trump's Message to the World: Do It Yourself

Joshua Geltzer co-wrote for CNN on the maxim underlying President Trump's message to foreign countries: Do it yourself.

What Trump's Qatar Tweets Revealed

Joshua Geltzer wrote for the Atlantic about President Trump's transactionalist approach to dealing with Qatar.

The Only Constant Is Trump

Joshua Geltzer wrote for the Atlantic about the lack of constancy in President Trump's foreign policy:

The Islamic State and the End of Lone-Wolf Terrorism

Joshua Geltzer wrote for Foreign Policy about ISIS's influence on the end of lone-wolf terrorism:

More Die in Bathtubs Than in Terrorism. It's Still Worth Spending Billions To Fight It

Joshua Geltzer wrote for CNN on why continued funding for efforts preventing terrorist attacks is necessary

There Are Limits to How Much Facebook Can Do for Us

Joshua Geltzer wrote for CNN on what social media platforms can do to thwart the display of violent videos and the spread of fake news.

Bomb First, Don't Explain Later: Trump's Failure to Justify His Use of Force

Joshua Geltzer wrote for CNN on President Trump's failure to explain the expansion of the use of U.S. military force.