 The Siden's Watchtower is a tactical unit level training event that allows the Naval Expeditionary Force the opportunity to demonstrate their ability to conduct expeditionary advanced base operations in a littoral environment. ERT is the Engineer and Reconnaissance Team. It's a part of the initiative plan for 2030 design. And what it is, is it's a tactical, intelligence-based team that reduces terrain-related uncertainties for the supported commander, specializing in anything related to transportation of logistics, TCM requirements for other elements we share within the battle space, and military demolitions. So we need to come together to survey on both land and water. Today we did some bathymetric surveys and some soil classification testing for future construction that's going to be on the island of Ukabaru itself. It will identify any sort of navigational hazards to ships that will be pulling in for future construction, as well as painting the seafloor itself to get a ship from offshore to inshore. So what we're doing out here today is scanning the island with LiDAR technology. It is a GeoSlam. You hold it like this. Freeze. No. It'll emit light in an infrared spectrum, and when the light comes back, it measures the distance and it can calculate a 3D picture to display to any sort of engineer who would want to see the lay of the land so that they could be able to plan out future port operating bases, future piers or future helo landing pads, anything of that nature.