U.S. Defense Spending by Year
U.S. defense spending has exceeded $900 billion in fiscal year 2026, accounting for approximately 3.5% of GDP and making the United States by far the world's largest military spender. Tracking defense spending by year reveals the impact of wars, geopolitical shifts, and budget pressures on America's military investment.
U.S. defense spending peaked as a percentage of GDP during WWII (~40%) and the Korean War (~15%). It fell to about 3% of GDP by the late 1990s ('peace dividend' after the Cold War) before rising sharply after 9/11. Today at ~$900B, the U.S. spends more on defense than the next 10 countries combined. Recent spending growth reflects the Ukraine war, China's military buildup, and modernization of nuclear forces.
? Frequently Asked Questions
How much does the U.S. spend on defense?
The U.S. defense budget for fiscal year 2026 exceeds $900 billion, including the base defense budget plus overseas contingency operations and other defense-related spending.
What percentage of GDP is defense spending?
U.S. defense spending amounts to approximately 3-3.5% of GDP, down from over 6% during the Cold War peak but still the highest absolute dollar amount of any nation.
How does U.S. defense spending compare to other countries?
The U.S. spends more on defense than the next 10 countries combined, including China (~$300B), Russia (~$100B), India (~$85B), Saudi Arabia (~$80B), and others.
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