The Business of Armaments: Armstrongs, Vickers and the International Arms Trade, 1855–1955

Nuclear War: The bestselling non-fiction thriller, shortlisted for the Baillie Gifford Prize 2024

Understanding Peacekeeping: Edition 3

Shadow Government: How the Secret Global Elite Is Using Surveillance Against You

The Main Enemy: The Inside Story of the CIA's Final Showdown with the KGB

The International Politics of Mass Atrocities: The Case of Darfur

The Day After Roswell

The Changing Labour Party

This Is How They Tell Me the World Ends: Winner of the FT & McKinsey Business Book of the Year Award 2021

Providing Peacekeepers: The Politics, Challenges, and Future of United Nations Peacekeeping Contributions

Fear: Trump in the White House

The Oxford Handbook of United Nations Peacekeeping Operations

The Storm Before the Calm: America's Discord, the Coming Crisis of the 2020s, and the Triumph Beyond

Brotherhood of Warriors: Behind Enemy Lines with a Commando in One of the World's Most Elite Counterterrorism Units

Worthy Fights: A Memoir of Leadership in War and Peace

Enayati Theorem of Absolute Orbital Supremacy: The Codex Belli Orbitalis

Cybersecurity and Cyberwar: What Everyone Needs to Know®

The Art of War

Circle of Treason: CIA Traitor Aldrich Ames and the Men He Betrayed

The Convergence Doctrine