 Staff Sergeant Sandoval, I'm the unit trainer at the 422nd Security Forces Squadron. I'm in charge of training the entire unit on everything the security forces does. Today on the Joint Exercise we started off the morning and I taught some CQB as close-quarter combat tactics and kind of just refining our response to active shooter. So my job is just to make sure that they know what they're doing on the ground. Today we went through several iterations of active shooter responses with being focused mostly on one shooter. To my knowledge and to the other instructors' knowledge this is the first time that anything at this scale has been done. There's some instructors who have been on the force since 2003 and they've never seen anything like this. This is the first time that all three agencies have been able to come together and collaborate. My name is Police Sergeant Wayne D'Assad. I'm a police national firearms instructor based at Northamptonshire Police Firehouse. I work with some of the guys from the 422nd today discussing how we could put this together. And then my role today has been as an exercise conducting officer just to make sure that everything's safe and that we can get the learning outcome that we can have with the exercise. The exercise today has been a bit of a combination really. So it's a good opportunity of course to practice some of our firearms tactics in isolation and also as a bit of show and tell with our partners. But what's been really good as well is that if there were a situation where we all need to come together we've proven today that in a rewarding terrorist attack we can come together and actually work together through buildings looking to neutralize that threat. Security Forces mission is to protect and defend everybody on the base, right? We're charged with protecting the base populace. Practicing these skills and linking up with our local partners so that they can refine their response as well. It's beneficial for everybody, it's beneficial for us so that our response is up to par and it's beneficial so that the base populace can also take effect when we're doing our thing.