Prime Minister Jacinda Ardern will meet US President Donald Trump in New York next week.
Ardern will be in New York for a meeting of the United Nations General Assembly, where she will give a keynote speech at the UN Secretary General's Climate Action Summit.
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"This is a key opportunity to emphasise that a long-term global challenge like climate change requires collective action," Ardern said in a statement.
"I'll also continue New Zealand's leadership on the Christchurch Call to Action to eliminate terrorist and violent extremist content online.
"A stock take on the progress made by countries, technology companies and civil society on the Christchurch Call will help to ensure we maintain momentum on the next steps."
Ardern will hold a bilateral meeting with Trump on Monday afternoon (New York time) to discuss trade and the pacific.
"The US is a key security partner for New Zealand, and an important trading partner. Two-way trade is over $18 billion, and there is strong support from the New Zealand business community to further strengthen our trade and economic ties," Ardern said.
The Prime Minister will visit Japan before the trip to New York to take part in an official summit meeting with Japan's Prime Minister Shinzo Abe.
Winston Peters will fill the role of Acting Prime Minister while Ardern is overseas from September 18-28.