What law requires the President to prepare the National Security Strategy for Congress?

The correct answer is the Goldwater-Nichols Act. This law, enacted in 1986, significantly restructured the command and operational authority of the U.S. military and included provisions that require the President to submit an annual National Security Strategy to Congress. This requirement ensures that Congress is informed about the administration's security priorities, strategic direction, and the rationale behind national security decisions.

The Goldwater-Nichols Act aimed to improve the military's coordination and efficiency among the different branches of the armed forces and has had a lasting impact on military operations and policy formulation. It established a direct line of communication between the President and Congress regarding national security matters, reflecting the importance of legislative oversight in defense policy.

In contrast, the other options pertain to different aspects of military and foreign policy but do not include a mandate for the National Security Strategy report. The National Defense Authorization Act primarily outlines budget and expenditures for defense operations, the War Powers Resolution is focused on the President's ability to engage troops without congressional approval, and the Foreign Assistance Act regulates American foreign aid, not the National Security Strategy.