Finland joined NATO after the war in Ukraine broke out, and Sweden will soon follow.

However, other countries are also waiting in line: Bosnia and Herzegovina, Georgia, and Ukraine.

https://en.wikipedia.org/wiki/Enlargement_of_NATO

Which country do you think will be the first to join NATO except Sweden? 

Sweden may join NATI next obviously! Predict the country which will join NATO first other than Sweden. 

This market will resolve early if a country other than Sweden joins NATO. If no country joins, the market will resolve as "NA."