The 2003 Defence White Paper, titled Delivering Security in a Changing World, set out the future structure of the British military, and was preceded by the 1998 Strategic Defence Review (SDR) and the 2002 SDR New Chapter, which responded to the immediate challenges to security in the aftermath of the September 11 attacks in 2001. Published under the then Secretary of State for Defence, Geoff Hoon, the report effectively introduced a series of cutbacks to core equipment and manpower and the scaling back of a series of future capital procurement projects. This was justified due to the implementation of a policy termed Network Enabled Capability. The review also outlined a major restructuring and consolidation of British Army Infantry regiments. Key points The White Paper, scaling back to an extent from the previous Strategic Defence Review, outlined the following posture for the UK armed forces: The ability to support three simultaneous small (e.g. Operation Palliser in Sierra Leone) to medium scale (e.g. Operation Veritas in Afghanistan) operations, where at least one is an enduring peace-keeping mission (e.g. Kosovo). These forces must be capable of acting as lead nation in any coalition operations. The ability, at longer notice, to deploy forces in a large scale operation (e.g. Operation Telic in Iraq or Operation Herrick in Afghanistan) while running a concurrent small scale operation. Most of the reforms listed below were announced as part of the Delivering Security in a Changing World: Future Capabilities review, published on 21 July 2004. British Army Manpower reduced by 1,000. Restructuring will cut 4 infantry battalions otherwise tasked to Northern Ireland, and the manpower redistributed elsewhere. Army High Velocity Missile fire units to be halved, which would lead to the re-role of 2 TA Royal Artillery regiments -> 100th (Yeomanry) Regiment Royal Artillery, re-equipped with L118 light guns and 104th Regiment Royal Artillery, re-equipped with L118 light guns and later light UAVs In addition, 22nd Regiment Royal Artillery was disbanded. The re-role of a Challenger 2 regiment into an armoured reconnaissance regiment -> Queen's Royal Lancers and several AS-90 batteries to a light gun regiment -> 40th Regiment Royal Artillery, into what would become 19 Light Brigade (see Future Army Structure). Withdrawal of 7 Challenger 2 squadrons and 6 AS-90 self-propelled gun batteries (approx. 84 tanks and 48 AS90s). -> 4 of these from the Queen's Royal Lancers, three others from Royal Wessex Yeomanry (4 tank replacement