Munitions stockpiles are set by the Stockpile Planning Steering Group, informed by expert maritime, land and air working groups. They also take account of Defence Strategic Direction, force structures and operational analysis. The current stockpile review, which will include analysis of Op ELLAMY, is due to report in March 2012. Major General Mark Poffley, the Assistant Chief of Defence Staff (Strategy & Plans) is the Senior Responsible Officer for this planning process, and stockpile levels are endorsed by the Defence Strategy and Plans Group (DSPG), which is chaired by Director General Finance.