Ardern is accompanied by Christopher Luxon, Minister of Arts, Culture and Heritage Carmel Sepuloni, and Minister of Pacific Peoples Aupito William Sio.
The two-day visit to Samoa reflects the special nature of the relationship between the two countries as defined in that Treaty.
The treaty between the two countries was signed in 1962 two months after Samoa gained independence, after being previously administered by New Zealand since 1920.
