Security in the South Pacific has proved to be one of the most enduring of Australia's security concerns. It was the subject of Australia's first substantial strategic policy initiative, when in 1888 Alfred Deakin took his concerns about French intrusion into Vanuatu to London (Wainwright 2003: 13). Since then, the South Pacific has played an important role in Australian security thinking. Notably during the Second World War in the Pacific and through Australia's responsibilities as a colonial power in Papua New Guinea until that country's independence in 1975. Australia was regarded as having been quite detached from the Pacific Islands during the post colonial period (Wainwright & White 2004: 10). However this period, until the beginning of the 21st century, was marked by numerous small scale Australian Defence Force (ADF) operations in the region. The notable cases were in Vanuatu in 1980 and 1988 as well Fiji in 1987 (Breen 2008: 44–45). The ADF also played an important role in peacekeeping missions in Bougainville during this period.
Australia has always placed an important emphasis on security in the South Pacific because of the concern that Australia's security could be undermined by anarchy in these states, or by them falling under the control of potentially hostile governments (Wainwright & White 2004: 14). Currently these perceptions translate into ongoing defence, security, economic, aid, environmental and humanitarian activities (Firth 2008: 1).
The security of Australia's immediate neighbourhood which it shares with Indonesia, New Zealand, Papua New Guinea, East Timor and the island countries of the South Pacific has ubiquitously been listed as the second most important defence priority behind the ability to defend Australia from a direct military attack (Australian Government Department of Defence 2000 & 2009). The White Papers emphasise that unstable neighbours could lead to a strategic environment that might be inimical to Australia's interests (Australian Government Department of Defence 2000 & 2009).
Australia considers itself as having significant responsibilities as a leader and regional power to ensure a stable and secure South Pacific (Australian Government Department of Defence 2000: 43–44). Australia is also expected by its global partners to be a regional leader and is judged by how well it fulfils this role (Firth 2008: 1; Australian Government Department of Foreign Affairs and Trade 1997: 65). In this role as a regional leader, Australia has assumed a role as the de facto security guarantor across the Melanesian Arc (Dobell 2011: 1 & 6). In addition, Australia realises that while the problems in its neighbourhood may not be 'world shaping problems', however, if it does not take the lead in addressing regional issues someone else might and this would be detrimental to Australia's ability to influence the region (Lyon 2008: 2).