A Joint Analysis of Conflict and Stability (JACS) is a strategic assessment used to underpin UK National Security Council Strategies. It was introduced by the UK’s Building Stability Overseas Strategy (BSOS) in 2011 and was reviewed by the Stabilisation Unit in 2016 in light of the new evidence and lessons learned over the past five years. A JACS seeks to answer the question: “What are the key conflict drivers that the UK government should and can target right now, building on which resiliencies and opportunities for peace, bearing in mind what risks?”. This analysis helps the UK avoid interventions which could inadvertently exacerbate conflict dynamics, undermine state legitimacy and fail to respond appropriately to the context. This document outlines the essential components of the analysis, as well as providing practical guidance on how to carry out a JACS.