“The first volume in the 100 Deadly Skills series delivered clandestine hacks designed to allow readers to escape and evade threats at home and abroad. The second book, my Survival Edition, provided a blueprint to surviving chaos, misadventures, and fatal disasters. Now, with the Combat Edition, I’ve created the most comprehensive on-the-ground combatives manual ever assembled—traveling the country to learn the most effective combat techniques from some of the deadliest characters on Earth. The…