Final answer:
The NDS is reviewed by the US Department of Defense, evaluating the strategic environment to define national defense objectives and establish priorities to address security threats.
Step-by-step explanation:
The National Defense Strategy (NDS) is reviewed by the United States Department of Defense, under guidance from the Secretary of Defense. The main objectives of the review are to assess and evalute the strategic environment, define objectives for national defense, and establish a clear set of priorities for the Department of Defense to address current and future threats. The review process involves an analysis of various factors such as geopolitical trends, military capabilities, budget constraints, and technological advancements. The NDS outlines how the United States will prioritize its resources and forces to ensure national security.