
Last week, Finland and Sweden submitted their offer to join the NATO military alliance - a move prompted by Russia's invasion of Ukraine.
But Turkey opposes it, with its leader Recep Tayyip Erdogan saying the two Nordic countries should not even bother sending delegations to convince Ankara of the idea.
NATO Secretary General Jens Stoltenberg has said on the BBC's HARDtalk that he is confident the alliance will find ways to address Turkey's concerns.
Turkey has accused both countries of supporting the Kurds and their organizations, which Erdogan calls a terrorist.
He also says, when asked, that it will be up to the International Criminal Court to decide whether Russian President Vladimir Putin is a war criminal or an architect of the genocide.