!Defense<br>spending<br>as %<br>of GDP<ref name="OMBDebtHistory2">The Executive Office of the President of the United States, Office of Management and Budget (February 14, 2010). [http://www.whitehouse.gov/omb/budget/Historicals "Historical Tables: Table 10-1"], The White House. Retrieved February 15, 2010.</ref>
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!Defense<br>spending<br>as %<br>of GDP<ref name="OMBDebtHistory2">The Executive Office of the President of the United States, Office of Management and Budget (February 14, 2010). [http://www.whitehouse.gov/omb/budget/Historicals "Historical Tables: Table 8-1"], The White House. Retrieved February 15, 2010.</ref>