Which document outlines the four-year planning horizon for defense?

Which document outlines the four-year planning horizon for defense?

• A. National Defense Strategy
• B. National Military Strategy
• C. Quadrennial Defense Review
• D. National Security Strategy

Answer: (C)

The four-year planning horizon for defense is defined by the Quadrennial Defense Review. This document is designed to lay out defense strategy, force structure, modernization, and resource priorities for the next four years, aligning defense programs with national security goals and informing budget decisions. Because of the term “quadrennial,” its scope and cadence are anchored to a four-year cycle, making it the planning guide that directly addresses what the department will pursue and invest in over that period. Other documents serve related but different purposes: the National Security Strategy sets broad national goals and foreign policy priorities; the National Defense Strategy translates those goals into defense objectives and capabilities; the National Military Strategy conveys how the armed services will execute those objectives. None explicitly frame a four-year planning horizon the way the Quadrennial Defense Review does.

The four-year planning horizon for defense is defined by the Quadrennial Defense Review. This document is designed to lay out defense strategy, force structure, modernization, and resource priorities for the next four years, aligning defense programs with national security goals and informing budget decisions. Because of the term “quadrennial,” its scope and cadence are anchored to a four-year cycle, making it the planning guide that directly addresses what the department will pursue and invest in over that period.

Other documents serve related but different purposes: the National Security Strategy sets broad national goals and foreign policy priorities; the National Defense Strategy translates those goals into defense objectives and capabilities; the National Military Strategy conveys how the armed services will execute those objectives. None explicitly frame a four-year planning horizon the way the Quadrennial Defense Review does.