Jeff Kirkham is a master sergeant in the U.S. Army Special Forces. He owns and operates Praetorian Innovations LLC, providing paramilitary training, evaluation, operational planning, and mission oversight in hostile combat environments. Since 2003, he has spent more than 50 months in Iraq and Afghanistan training, advising, and supporting indigenous elite commando units. He is also president of TwistRate, a web-based company dedicated to helping veteran entrepreneurs or "veteranpreneurs" get their inventions prototyped, funded, and sold. He is the author of Small Unit Leaders Operation Planning Guide (978-0-9819180-5-1).