Video: PM Jacinda Ardern attends Remembrance Day ceremony in Vietnam with Malcolm Turnbull

Jacinda Ardern has commemorated Remembrance Day alongside Australian counterpart Malcolm Turnbull.

The two leaders held a formal moment of reflection surrounded by New Zealand and Australian defence personnel in Da Nang, Vietnam, where they're attending the APEC summit.

They placed a single poppy each in front of hats representing the three branches of each country's armed forces.

The modest service marked 99 years since the guns fell silent, ending the First World War.

"We owe it to all of those who have made the ultimate sacrifice in war not to be complacent about the peace they gifted us," Ms Ardern said.

New Zealand suffered the highest per capita rate of casualties in that war, having sent 10 per cent of is population to the battlefields.

"Few families were untouched, including mine," she said, adding that as a result New Zealanders placed a high premium on peace.

Standing alongside Mr Turnbull, she spoke of mateship and the Anzac spirit, and how the strongest of bonds can be forged in the hardest of times.

It was a sentiment shared by Mr Turnbull.

"Today, Australians and New Zealanders remember every Anzac serviceman and woman who has made a supreme sacrifice to keep our nations free," he said.

"Anzacs created an unbreakable bond between us and created a legend. We hold them dear in our hearts and minds."

Deputy Prime Minister Winston Peters and Trade Minister David Parker also joined in the service, laying their own poppies.

The leaders are all attending the APEC leaders' summit in Da Neng, Vietnam. Source: 1 NEWS