In five momentous years Jacinda Ardern became New Zealand’s most important postwar prime minister | Morgan Godfery

Ardern proved she was more than a happy face as she confronted Covid, terrorism, the climate crisis and more

• Jacinda Ardern resigns as prime minister of New Zealand

In one sense it feels as if Jacinda Ardern, who came to office in 2017, was the perpetual prime minister. In the collective memory, time fractures into the innocent period before the Christchurch massacre, the White Island eruption, the pandemic and then the exhausting period post.

In each period - both before and after that defining summer from December 2019 to February 2020 - it feels as if the constant was Ardern. It's difficult to imagine any other prime minister cutting through their bureaucracy's cautious advice, their cabinet's hesitancy and their citizenry's uncertainty to make the decision to lock down a country of five million and work towards eliminating Covid-19.