Current Nato Members 2025. Sweden became nato’s newest member on thursday (7 march 2025), upon depositing its instrument of accession to the north atlantic treaty with the government of the united states in washington dc. Finland and sweden are nato's newest full members, having completed the process in 2023 and 2025, respectively.
In the map of europe below, you can see the countries with and without nato. As of 2025, nato boasts 31 member countries, each contributing to the alliance’s overarching goal of ensuring peace and security in the north atlantic region.