Abstract: Here is briefly introduced the project of littoral combat ships (LCS) of the US navy reviewed the selection of hull and superstructure materials, especially for the independence class of LCS and all-aluminum warships, and introduced the alloy system, the dimension, the type, the quantity and the specifications of the selected aluminum alloys. Further, the coating systems and the ICCP system to protect LCS from corrosion are reviewed. Finally, the recent activities of research and development of aluminum alloys in the USA are introduced.