'Read more: https://www.forces.net/to-hell-and-back  \"I have followed the exploits of the Royal Marines speed marching team over six years,\" writes military filmmaker Chris Terrill. \"Royal Marines have determination and doggedness bred in their bones but I never cease to be amazed at the pain thresholds they are able to cross, both physically and mentally.\"  Subscribe to Forces TV: http://bit.ly/1OraazC Check out our website: http://forces.net Facebook: https://www.facebook.com/ForcesTV Twitter: https://twitter.com/ForcesNews  Thumbnail picture courtesy of Anthony Upton.' 

Tags: british , military , Afghanistan , Royal Marines , british military , forces , British Armed Forces , Forces TV , Forces News , serving , Ministry of Defence , military personnel , British defence , Chris terrill , to hell and back , Major Scotty Mills , Royal Marines speed marching team , speed marching , Falklands

SEE ALSO: gym , News , hiit workout , was , U Jam , lose , kara , home workout , wellness , mari