I'll kick us off with a great documentary that I saw last night about the 1st Battalion, Grenadier Guards. They are the ones that guard Buckingham Palace and the documentary shows footage of them in Helmand Province and the UK, preparing for the Trooping of the Colour on the Queen's birthday parade.
[youtube]http://www.youtube.com/watch?v=STPxQkHiH04[/youtube]