This paper will detail the continued support for GCOS provided via the U.S. Climate Change Research Initiative and managed by the U.S. GCOS Program Manager in NOAA. The paper will describe how that global effort for supporting GCOS in developing nations fits in with the proactive approach that has been taken in the Pacific Islands region. The process in the Pacific has been accomplished through a solid planning process that has as its goal obtaining a sustainable and robust GCOS observing network for atmospheric, oceanographic, and terrestrial climate observing in the region. The paper will describe the actions completed to date, plans for the future, and how the efforts of the Pacific Islands Regional GCOS Implementation Team (PIRGIT), and accompanying evolution of the PIRGIT into a more formal regional Steering Committee, have been combined with related efforts such as the establishment of a virtual Regional Climate Center, in order to provide more tailored regional and climate forecast products for the nations in the region. The paper will further describe how support for GCOS in the region has been leveraged via distinct bilateral climate partnership agreements the U.S. has entered into with Australia and New Zealand.