Sergeant First Class Matt Larsen, a longtime trainer in survival and fighting techniques for the Army Rangers, previously updated the U.S. Army Survival Handbook (Lyons Press). He is Director of the Modern Army Combatives Program and Commandant of the U.S. Army Combatives School. A graduate of the multiservice SERE (Survival, Evasion, Rescue, and Escape) training program, he served in the 75th Ranger Regiment for over twelve years, parachuting into Panama during the invasion there and participating in the Gulf War.