The International Institute for Strategic Studies is an influential independent international think tank. As Senior Fellow for Land Warfare, Ben Barry has written extensively for IISS publications including Survival, its journal, and Strategic Survey, its annual assessment of world affairs. He is one of the authors of the annual Military Balance, an authoritative assessment of global military affairs. He was the author of 'Combat and Capability: Military Trends since 9/11', published in the 2012 Military Balance. This flagship essay was a concise analysis of the decade of military conflict war from 2001 to 2011.
He left the British Army in October 2010. He wrote A Cold War: Frontline Operations in Bosnia describing his battalion’s operational tour under both UN and NATO flags in the mid-1990s. The book was shortlisted for the British Army Book of the Year 2009. His final appointment was leading the British Army’s analysis of the lessons of the Iraq campaign, which informs Blood, Metal and Dust.