The Western military alliance's secretary general has announced that Finland will become the 31st member of Nato.
The application was prompted by the invasion of Ukraine by Russia, with which Finland shares a long border.
Turkey had delayed the application, complaining that Finland was supporting terrorists.
Sweden applied to join Nato at the same time last May, but Turkey is blocking it over similar complaints.
Turkish President Recep Tayyip Erdogan has accused it of embracing Kurdish militants and allowing them to demonstrate on the streets of Stockholm.