English: This shows the base defense budget plus specific funding for wars in Iraq and Afghanistan

This chart shows trends in annual (fiscal year) defense spending from 2001 through 2017. The 2017 amount is an estimate. The chart shows three series of data:

• DOD base + 2% inflation: The 2001 base level of spending assuming it kept pace with inflation, which averaged 2% during the period.
• Increase in DOD base: The increase in the base level of spending above the 2% inflation adjustment.
• OC or Overseas Contingency Operations: Funding mainly for the Iraq & Afghanistan wars, plus other "War on terror" expenses.

So the base spending is the first two statistics.

For the 2001-2017 period, the OCO amount was $1,677 billion. The Base + Inflation amount was $5,751 billion. The Increase over inflation was $1,961 billion. The sum of the three was $9,390 billion.

Version two of the chart:

• Defense Budget Overview-FY 2017 U.S. DOD FY2017 Budget Request

Version one of the chart (superseded): The data from 2001 - 2014 are from the Office of Management and Budget (OMB). The data is contained on page 8 of the OMB document here:

• OMB-Overview FY 2014 Defense Budget

The two documents below have the data for a similar analysis from CBO through 2009; one has the total amounts and the other has additional commentary on amounts spent in the wars, broken out by year.

• CBO-Historical Tables
• CBO-Testimony on Costs of Iraq & Afghanistan Wars

Here is a similar chart from the DOD for the 2010 budget:

• DOD-Defense Spending Trend Chart-May 2009

This supersedes an earlier chart on Commons:

thumb|right|Defense Spending 2000–2011.