http://www.mi5.gov.uk/
http://www.mi5.gov.uk/output/Page311.html
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https://www.mi5.gov.uk/output/Page18.html
“How you can help”
http://www.defenselink.mil/news/newsarticle.aspx?id=49177
“Commander Foresees Growth of Special Operations Forces”
By Gerry J. Gilmore
American Forces Press Service
WASHINGTON, March 5, 2008