 I am a chemical, biological, radiological, nuclear defense specialist. So our mission is basically to defend against all chemical warfare agents and other weapons of mass destruction. DERSCO training stands for dismounted reconnaissance sets, kits, and outfits. The training is invaluable. The DERSCO that we use down at the Guardian Center is the very same equipment that we would use in a forward-deployed contaminated environment. It gives the Marines a sense of real-world, live, contaminated environment operations. We started off the first week in a classroom environment, and then we proceeded into doing small-scale practical application exercises with some of that equipment. And then during the second week, it was full-scale. Every day, we were operating in a different type of environment with a different type of contamination, different levels of PPE, different types of detection equipment, as well as proceeding through the decontamination lines at the end of every operation. Getting more into the mindset of how an enemy thinks. Knowing how to identify what they're sending against us so we don't lose more than we have to, I think is the most important thing that we need.