If it's multiple choice then it'd be California and New Mexico.
Answer:
The western block was made up of:
1. Great Britain
2. United States
3. France
4. Belgium
5. Denmark
6. Norway
7. Netherlands
8. West- Germany
9. Turkey
10. Italy
11. Luxembourg
12. Iceland
Explanation:
During the Cold War, the world was distributed into 3 blocks, the Western block, the Eastern block and neutral countries.
The Western Block consisted of mostly capitalist countries, who were lead by the United States and Great Britain and formed the NATO.
The Eastern Block was aligned with the Soviet-Union and consisted of countries like Poland and Ukraine.
California had the highest correctonal budget
I believe that would be the fault line.
Hope it helps!