 So today we are doing a mass casualty for CLR-37 for both our corpsmen and for the Marines involved in the jump CP as part of Iron Dragon. The mass casualty, what that is, is it is any event medically that overwhelms our medical system, so our simple BAS that's set up. The purpose of it is to work through a point of injury to the casualty collection point to our BAS and then do a ground to air medevac. So this is our first experience to take our training that we've done in clinic on that ground type training and really mobilize it from our Humvee type patient movement to movement to an actual aircraft, which is realistic in a true wartime scenario with how we would be moving patients.