About the Author

Sam McGrath was the youngest soldier to achieve the rank of major since the Second World War and has been running the selection course for the crack Parachute Regiment for the last three years. In his spare time he organizes the Para 10 - a 10-mile charity race which anyone can enter as long as they are prepared to run in combat boots while carrying a rucksack. This year he also completed the Bob Graham Round for Help for Heroes, an endurance challenge in which participants climb 42 peaks in the Lake District with a combined vertical ascent of 27,000ft over 72 miles in just 24 hours.