In May it will be two years since Sweden and Finland jointly applied for membership in NATO, and in April it will be one year since Finland became a NATO member.

For Sweden, however, the process has been anything but friction-free as Turkey and Hungary delayed their approvals.

After today's vote in the Turkish parliament, however, it is clear that Sweden is now much closer to becoming a member of the defense alliance.

In order for Turkey as a whole to approve Sweden as a NATO member, however, President Erdogan still needs to formally ratify the application.

Hungary left

If Erdogan does sign the document, it means that Hungary remains the last NATO member not to have ratified Sweden's application - something it has repeatedly said it does not intend to be.

Earlier today, Sweden's Prime Minister Ulf Kristersson (M) received a letter from Hungary's Prime Minister Viktor Orbán.

"I invite you to come to Hungary as soon as you have the opportunity to exchange views in all areas, including our complex bilateral relations, and our future cooperation in the framework of security and defense as allies and partners," Orbán writes, among other things.

However, Foreign Minister Tobias Billström does not want to answer whether the prime minister will go to Hungary for a meeting with Viktor Orbán.