Turkey has agreed to pave the way for Finland and Sweden to join NATO. The two countries had applied to join the alliance in response to Russia's invasion of Ukraine.
Meanwhile Prime Minister Jacinda Ardern is promising to stress New Zealand's commitment to a "fiercely independent" foreign policy when she speaks to NATO leaders in a few hours' time.
Jacinda Ardern is in Madrid to attend the leaders' summit overnight, which kicked off last night with a dinner for NATO partners hosted by the King of Spain.
Our political reporter Katie Scotcher will be at summit. She joins Lisa Owen with the details.
