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The United States and its strongest allies (the NATO countries, Japan, South Korea and Australia) spend $1.1 trillion on their militaries combine, representing 72 percent of the world's total.
Military expenditures in 2008 (in billions of U.S. dollars with percentage of global total)
Defense Appropriations Bill (U.S. House Committee on Appropriations)
Department of Defense Appropriations Bill, 2010
Country Comparison: Military Expenditures (CIA World Factbook)
Military Expenditure Data, 1999–2008 (SIPRI)
The Government’s Expenditure Plans, 2007-2008 (United Kingdom)
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