Federal spending · FY2024
National Defense
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National Defense encompasses the broad spectrum of activities undertaken by the U.S. government to protect national security interests, deter aggression, and project power globally. Its core purpose is to maintain a military capable of defending the nation's territory, citizens, and interests against foreign threats, as well as responding to international crises. Success is defined by the nation's ability to deter conflict, achieve military objectives when necessary, and maintain global stability through a credible defense posture. The Department of Defense stewards the vast majority of this spending, managing a complex ecosystem of personnel, equipment, research, development, and global operations. Key program streams include personnel and readiness, strategic weapons systems development and procurement, intelligence gathering, and global force projection, all aimed at ensuring the nation's security and advancing its foreign policy objectives.
The problem
The 'critical' status for National Defense spending, totaling $1.2 trillion and showing a 6.5% increase, signals a significant threat to fiscal sustainability and potentially crowds out other national priorities. This level of expenditure, particularly with an upward trend, raises concerns about the efficiency and effectiveness of defense investments. While the mission of national defense is paramount, sustained high growth rates without clear, proportional increases in strategic capability or readiness can indicate systemic issues. These may include cost overruns in major acquisition programs, insufficient oversight of contractor performance, a lack of rigorous return-on-investment analysis for new platforms, or a tendency towards maintaining legacy systems and personnel structures that do not align with evolving geopolitical threats. The sheer scale of this spending necessitates a critical examination of whether current resource allocation maximizes national security objectives per dollar spent, or if it represents an unsustainable fiscal trajectory.
The solution
For National Defense, AI can be leveraged to enhance acquisition oversight and strategic resource allocation. AI-driven analytics can monitor contractor performance and financial burn rates in real-time for major weapons systems, providing early warnings of cost overruns and schedule slippage, thereby enabling proactive intervention. Predictive models can assess the readiness and sustainment costs associated with different force structures and equipment portfolios, informing decisions on modernization versus maintenance and identifying opportunities to divest from underutilized or excessively costly assets. AI can also support strategic planning by simulating the impact of various threat scenarios on defense requirements and resource needs, optimizing the allocation of R&D, procurement, and operational budgets to maximize national security outcomes against evolving challenges. This includes analyzing global threat intelligence to forecast future military needs and inform long-term strategic investments.
The biggest part of National Defense is Department of Defense-Military: $1.0T (82.3%).
How to read it: Tap a row to open what's inside. Colours match the chart above, and each row's share is its part of the row it sits under.
| Where it went | Gross outlays | Share | Action |
|---|---|---|---|
| $1.0T82.3% | 82.3% | ||
| $175.8B14.5% | 14.5% | ||
| $39.7B3.3% | 3.3% |