8. Pakistan (Non-Party to the NPT)

7. Israel (Non-Party to the NPT)

6. India (Non-Party to the NPT)

5. The United States (Nuclear-Weapon State)

4. The United Kingdom (Nuclear-Weapon State)

3. Russia (Nuclear-Weapon State)

2. France (Nuclear-Weapon State)

1. China (Nuclear-Weapon State)

Chapter 1. Area Summary