As of 2023, there are 31 countries that are members of NATO. The 12 founding member countries of NATO are Belgium, Canada, Denmark, France, Iceland, Italy, Luxembourg, the Netherlands, Norway, Portugal, the United Kingdom, and the United States. The other countries that joined NATO after its formation are:
- Greece
- Turkey
- Germany
- Spain
- Czech Republic
- Hungary
- Poland
- Bulgaria
- Estonia
- Latvia
- Lithuania
- Romania
- Slovakia
- Slovenia
- Albania
- Croatia
- Montenegro
- Republic of North Macedonia
It is worth noting that there are several countries that aspire to become members of NATO, including Bosnia and Herzegovina, Georgia, Kosovo, Montenegro, North Macedonia, and Ukraine.
