マヌス島
On 20 September 2018, "The Australian" reported that Australia and Papua New Guinea were discussing providing port facilities to the Royal Australian Navy and US Navy on Manus Island. Australia and the United States would help expand Lombrum Naval Base, so there would be facilities for Australian naval vessels there. The newspaper reported that Australia was countering interest China had placed in expanding Papua New Guinea's port facilities at Wewak, Kikori, Vanimo and Manus Island. Manus Island is the most important of these four ports, as it is a deep-water port near important shipping lanes. The RAN operated a naval base on Manus Island from the 1950s until transferred to the Papua New Guinea Defence Force in 1974.