Austal Australia delivered the 11th Guardian-class patrol boat to the Australian Department of Defence. Subsequently the RKS Teanoai II was gifted by the Australian Government to the Republic of Kiribati at a handover ceremony hosted at Austal's Henderson shipyard on 11 June 2021. It is the first Guardian-class patrol boat to be delivered to Kiribati under the Pacific Patrol Boat Replacement Project (SEA3036-1), which is intrinsic to the Australian Government’s Pacific Maritime Security Program. The new patrol boat replaces the original RKS Teanoai, a Pacific-class patrol boat delivered in 1994.