 We're established on OP sites or observation posts and we are direction-finding on enemy signatures to provide that early warning for 325s exercise. This is kind of their walk and crawl phase of their infantry maneuvers and how they attack on a objective set of hasty defenses. And for us BW, we're trying to certify our systems to ensure they're actually communicating properly, getting direction-finding accurately and also kind of testing our reporting processes in order to report back to the units that we're supporting. As you know, there's land, air and sea, we're kind of in the cyber domain, so things that you can't see like radio waves, emitters, radar, things of that nature, that's what we're trying to identify with our systems, things that you cannot see on a battlefield. For direction-finding, we provide that early warning detection for the infantry element that we're supporting. Once we find those locations, those signatures, we relay that information to the committee commander as soon as possible and then they can have a situational awareness of the battlefield of where the signature is coming from. Tool is the tactical, the China warfare light system and what it basically is is a direction-finding platform. It allows us to direction-find on radio signatures. The VMAX is a dismounted system, very similar to the tool, but it also has the electronic attack side of it, so direction-finds and it can also provide electronic attack. China warfare is important because it provides that situational awareness in the battlefield that is beyond line of sight visually. So we're trying to see far-reaching areas where we can see radio signatures instead of what you can see through your naked eye.