In the Graveyard of Empires: America's War in Afghanistan

Waging Insurgent Warfare: Lessons from the Vietcong to the Islamic State

Hunting in the Shadows: The Pursuit of al Qa'ida since 9/11

Waging Insurgent Warfare: Lessons from the Vietcong to the Islamic State

Three Dangerous Men: Russia, China, Iran and the Rise of Irregular Warfare

A Covert Action: Reagan, the CIA, and the Cold War Struggle in Poland

How Terrorist Groups End: Lessons for Countering al Qa'ida

Securing Health: Lessons from Nation-Building Missions

Establishing Law and Order After Conflict