National Security and Foreign Service​ deal with relationships between the United States and other countries.
The answer is option D.
What are foreign affairs and national security?
The NSFA program articulates a national security and foreign affairs policy that calls for a strong national defense and quality of life improvements for military personnel, retirees, and their families; guarantees our integrity as a nation; promotes our democratic ideals and interests abroad, and seeks the fullest.
What is the role of national security?
National security is often understood as the capacity of a nation to mobilize military forces to guarantee its borders and to deter or successfully defend against physical threats including military aggression and attacks by non-state actors, such as terrorism.
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