4th Mechanized Brigade will replace 12th Mechanized Brigade in October 2012 as the lead formation of British troops in Helmand province.
The HERRICK 17 roulement reflects the fact that conventional UK forces will draw down by 500 over the remainder of this year, as previously announced.
In addition to the list of formed units, individual augmentees from each of the Services will continue to deploy as part of this integrated force package. In total we expect 1,138 individual augmentees to deploy on operations. This will be comprised of 168 Royal Navy personnel, 344 Army personnel and 626 Royal Air Force personnel.
Volunteer and ex-Regular members of the Reserve Forces will continue to deploy to Afghanistan as part of this integrated force package, and we expect to issue around 575 call-out notices.
On completion of their mobilisation procedures, the reservists will undertake a period of training and, where applicable, integration with their respective receiving units.
The majority will serve on operations for six or so months. As part of this commitment, we expect up to six members of the sponsored reserves to be in theatre at any one time.
The roulement statement lists units due to deploy on operations as part of HERRICK 17 where the contribution from each unit totals ten or more personnel. This list is correct at time of publication but should the UK's operational requirement unexpectedly change it is possible that the envisaged size and formation of each unit may in turn alter.
For a list of forces deploying with 4th Mechanized Brigade see the link on the right.