On 15 May 2019, Ardern and French President Emmanuel Macron co-chaired the Christchurch Call summit, which aimed to "bring together countries and tech companies in an attempt to ... promote terrorism and violent extremism". | On 15 May 2019, Ardern and French President Emmanuel Macron co-chaired the Christchurch Call summit, which aimed to "bring together countries and tech companies in an attempt to ... promote terrorism and violent extremism". |