What it is
Defense spending refers to the total financial outlay by a government to maintain its military capabilities, including salaries for personnel, procurement of weapons and vehicles, and investment in defense technology. This expenditure covers a wide range of activities from operational costs and infrastructure maintenance to strategic research and development, directly supporting a nation's defense objectives and its ability to project power.
Increased defense spending often signals heightened geopolitical risk or a shift in national security policy, impacting defense contractors and related industries. Investors monitor these trends, particularly in the context of U.S.-China relations, as shifts can influence the stock performance of defense companies and contribute to broader economic debates about resource allocation and public debt.
Why it matters
Changes in defense spending can signal rising geopolitical tensions or shifts in international relations, affecting markets and specific industries.
Reviewed under editorial standardsUpdated September 26, 2026Not investment advice