SEA POWER 21’s Sea Basing operational concept envisions enhanced operational independence and support for joint forces provided by networked, mobile, and secure sovereign platforms operating in the maritime domain. The Second ASNE Joint Sea Basing Symposium 2006 will focus on the operational, technological, engineering and platform design developments that have occurred in the Joint Sea Basing community over the past year and the vision going forward making a more affordable Joint Sea Base. Sea Basing presents many operational, technological, and engineering and design challenges. Government and industry have developed and are formulating solutions to overcome these challenges. The past year has seen developments in the US Navy’s shipbuilding plans for many ships that will form the Joint Sea Base. The LHA 6, formerly LHA(R), has emerged as a key Marine aviation asset in the Sea Base. Development continues on the LHD 8 amphibious assault ship that will project power both over the beach and to targets inland. A rapid strategic lift ship (RSLS) will provide a platform to surge non-prepositioned USMC aviation assets. A new joint maritime & assault connector craft (JMACC), formerly LCAC(X), that will forge forces, equipment and supplies ashore is beginning its development. The US Navy continues to study modified repeats of both the large medium speed RO-RO (LMSR) and auxiliary cargo ammunition (T-AKE) ships to provide sea base logistical support and sustainment. The US Navy also plans to introduce new platform designs into the Sea Base, including a mobile landing platform (MLP(X)) ship as an equipment and cargo transfer interface between larger sea base ships and smaller connector craft as well as MPF(F) with the US Marine Corps. The US Navy and US Army are jointly developing one of these high speed connectors in the JHSV program. Both NSWC and ONR are experimenting with the innovative naval prototype concepts and advanced technologies that will enable the future Sea Base. Hurricane Katrina relief efforts have shown the peacetime benefits of current US Navy, US Marine Corps, and US Coast Guard Sea Base assets. Additionally, the US Navy is considering a mobile platform to land the venerated C-130 airlift asset and how a Sea Base will support future US Air Force operations. The US Navy, US Coast Guard and US Army continue to pursue advanced high speed ships to very rapidly move forces, equipment and supplies to crises areas and to sustain them for long periods of operations.