Pentagon Papers: The Secret War.

The article presents information on a war that resulted due to the massive leak of secret documents in U.S. history. Daniel Ellsberg, a former Pentagon analyst, was reportedly so concerned about his involvement in the Vietnam tragedy that he had conveyed about 40 volumes of an extraordinary Pentagon history of the war to a newspaper. This included 4,000 pages of top secret documents. The first U.S. ground troops were deployed in South Vietnam during the spring of 1965.