© licensed to London News Pictures. London, UK 09/11/2013. The Royal Marines and Commando 999 meeting with Prime Minister David Cameron on Downing Street on Saturday, November 9, 2013 after Commando 999's attempt to break the Speed March World Record by completing the 26.2 mile London marathon course in less than 4 hours and 19 minutes. Photo credit: Tolga Akmen/LNP