Which of the following foreign policy shifts was a direct result of the attacks that took place on September 11, 2001?

a. national security

b. counterterrorism

c. internationalism

d. economic aid

The answer is A. national security

Following the devastating attacks on 9/11, United States created several organizations in order to improve our national security.

One of the example would be the Transportation Security Administration That possesses the authority to maintain the security in public transportations (mainly airplanes)