For an army that wishes to be taken seriously, the division provides the basic building block of deployable capability. Only at the divisional level can the full orchestra of ‘all arms’ be combined or integrated to best effect, and the next battle or engagement be planned when the current one is underway. The division, which should be self-sustaining with a sufficient ‘slice’ of Force Support troops and other ‘enablers’, represents the minimum credible contribution to a coalition or alliance operation for anything other than an enduring peacekeeping operation. A well-trained, quickly deployed warfighting division provides reassurance to friends and allies, and contributes to the robust deterrence of our opponents. Thus regenerating the warfighting division within the context of multinational corps operations represents one of the most important tasks facing the British Army today.