Blackfive posted on the U.S. Navy’s new mission in Iraq, patrolling the Euphrates River, including the waterways of Ramadi, on small riverine craft. In December of 2005, I embedded with the Damn Security Unit (or DSU) at Haditha Dam in Anbar province. You can see the photogallery here. The DSU was made up of Marine Corps Reservists who were part of an armored amphibious company (AAV) converted to the Small Marine Riverine Craft. These bots are essentially tanks on the water, as they pack a serious amount of firepower and can take a beating. I described the craft here: