Information on strengths and requirements of the armed forces by service can be found in table 1 of Tri-Service Publication (TSP) 4—UK armed forces quarterly manning report. TSP 4 is published quarterly and, the most recent publication shows figures as at 1 October 2008, can be found at:
http://www.dasa.mod.uk/applications/newWeb/www/index php ?page=48&pubType=1&thiscontent=20&PublishTime=09:30:00& date=20081127&disText=01%20Oct%202008&from=listing&top Date=2008-11-27
Requirement is not split by unit for the three services. Strengths information by unit can be provided only at disproportionate cost.