Caledonia (2015–2019) Monarch – Elizabeth II, Queen of New Zealand (1952–2022) Governor-General – Dame Patsy Reddy, Governor-General of New Zealand (2016–2021) Prime Minister – Jacinda Ardern, Prime Minister of New Zealand (2017–2023) Winston Peters, Acting Prime Minister of New Zealand (2018) (associated state of New Zealand) Premier – Sir Toke Talagi, Premier of Niue (2008–present) (Commonwealth of the United States) Governor – Ralph Torres, Governor of the Northern Mariana Islands (2015–present) President – Tommy Remengesau, President of Palau (2013–2021) Monarch – Elizabeth II, Queen of Papua New Guinea (1975–2022) Governor-General – Sir Bob Dadae, Governor-General of Papua New Guinea (2017–present) Prime Minister – Peter O'Neill, Prime Minister of Papua New Guinea (2011–2019) (Overseas Territory of the United Kingdom) Governor – Robin Shackell, Acting Governor of the Pitcairn Islands (2017–2018) Laura Clarke, Governor of Pitcairn (2018–present) Mayor – Shawn Christian, Mayor of the Pitcairn Islands (2014–2019) Head of State – Tuimalealiʻifano Vaʻaletoʻa Sualauvi II, O le Ao o le Malo of Samoa (2017–present) Prime Minister – Tuila'epa Sa'ilele Malielegaoi, Prime Minister of Samoa (1998–2021) Monarch – Elizabeth II, Queen of the Solomon Islands (1978–2022) Governor-General – Sir Frank Kabui, Governor-General of the Solomon Islands (2009–2019) Prime Minister – Rick Houenipwela, Prime Minister of the Solomon Islands (2017–2019) (dependent territory of New Zealand) Administrator – Jonathan Kings, Administrator of Tokelau (2017–2018) Ross Ardern, Administrator of Tokelau (2018–present) Head of Government – Siopili Perez, Head of Government of Tokelau (2017–2018) Afega Gaualofa, Head of Government of Tokelau (2018–2019) Monarch – Tupou VI, King of Tonga (2012–present) Prime Minister – ʻAkilisi Pōhiva, Prime Minister of Tonga (2014–2019) Monarch – Elizabeth II, Queen of Tuvalu (1978–2022) Governor-General – Sir Iakoba Italeli, Governor-General of Tuvalu (2010–2020) Prime Minister – Enele Sopoaga, Prime Minister of Tuvalu (2013–2019) President – Tallis Obed Moses, President of Vanuatu (2017–present) Prime Minister – Charlot Salwai, Prime Minister of Vanuatu (2016–2020) (overseas collectivity of France) Administrator – Christophe Lotigie, Acting Administrator Superior of Wallis and Futuna (2018–2019) Jean-Francis Treffel, Administrator Superior of Wallis and Futuna (2017–2018) Head of Government – David Vergé, President of the Territorial Assembly of Wallis and Futuna (2017–2019) South America President – Mauricio Macri, President of Argentina (2015–present) President – Evo Morales, President of Bolivia (2006–2019) President – Michel Temer, President of Brazil (2016–2018) President – Michelle Bachelet, President of Chile (2014–2018) Sebastián Piñera, President of Chile (2018–2022) President – Juan Manuel Santos, President of Colombia (2010–2018) Iván