Whilst geopolitics, economics, religion and ethnicity all play crucial roles in starting and sustaining conflict this book advances the idea that it will be people's behaviour, and the West's ability to understand, interpret and influence that behaviour which will become the defining characteristic of resolving future armed disputes. This seminal study draws directly on the authors'operational experiences in Sierra Leone, Northern Ireland, Bosnia, Kosovo, Iraq, Lebanon and Afghanistan. Includes a chapter by behavioural scientist Dr. Lee Rowland and an introduction by the BBC Radio 4 "More or Less" presenter Tim Harford. The foreword is by former ISAF commander General (ret.) Stanley McChrystal. This book argues that future conflicts will be best resolved by focusing attention on altering the behaviours of others, either in advance - and therefore deterring conflict - or as a coupled component in the process of combat and post-combat operations. They also argue that Western Armies have learnt too many lessons the hard way and been found wanting too easily. "Behavioural Conflct" argues for a fundamental rethink of the way that the West's militaries are organised, educated, trained and deployed.