 Since initial deployments supporting OEF, British forces have taken part in the ISAF mission, whilst British special forces have worked with both OEF and ISAF.In January 2006, Defence Secretary John Reid announced the UK would send a PRT with several thousand personnel to Helmand for at least three years.This had been planned as part of the gradual expansion of ISAF's area of responsibility from the Kabul region to the rest of Afghanistan.