President Eisenhower warned of the rise of the military industrial complex in his 1961 farewell address . It's impossible to know for sure if he was thinking of companies like these, selling about $235 billion in arms every year, but it's possible. Making weapons has become a U.S. specialty, with 47 American companies filling the top 100 grossing slots in the world . The following numbers are put together by SIPRI based on numbers from 2010 , rank in terms of sales, and offer an unbiased view of how big a business war has become. #25 CACI International flikr/GovWin a Deltek Network Global satellite communications equipment supports military intelligence. Arms sales: $2.3 billion Total profit: $107 million Employees: 13,100 people While CACI International doesn't make weapons, they supply the U.S. Army with an information lifeline. The TROJAN satellite communication systems provide the Army with a global network of shared mission-cr
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