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I don't even mention the manuals. Why bring up that point? The manuals are talked about later in the article. Since WW2 is supported by the source. It says: ""Since its founding in 1946, the SOAnow located at Fort Benning in Georgia and renamed the Western Hemisphere Institute for Security Cooperationhas trained more than 60,000 Latin American soldiers in commando and psychological warfare, counterinsurgency techniques..."" "