LAUSR

have been dramatically different. The Oxford Handbook ably reflects the origins, evolution, experiences, promises, and dilemmas of UN peacekeeping over the first 65 years. It appears in 2015 at a moment that is at best a partial or in-process evolution of peacekeeping from an unplanned response to crisis in the mid-1950s to the routine, essential tool it has become in the global governance toolbox of responding to violent armed conflict. A reflective look at these years suggests that there is much more evolution to occur, not least of which is the sorely needed next major transformation of UN peacekeeping from an essentially ad hoc mechanism to a permanent, robust, potentially volunteer preventive force as envisaged by the early ‘lions’ of peacekeeping, such as Sir Brian Urquhart, who shaped its initial evolution.