<P> An assassination team or death squad, Medusa was created to infiltrate Northern Vietnam and assassinate members of the Viet Cong and its collaborators . Its members were criminals; its leader, a man called Delta, who ran Medusa with an iron fist . He became well known for his ruthlessness, his disregard for orders, and his disturbing success rate on his missions, resulting in the kidnapping of Webb's brother, U.S. Army Lieutenant Gordon Webb, during his tour of duty in Saigon . </P> <P> During the mission to save David Webb's brother, an original "Medusa" team member named Jason Charles Bourne was discovered to be a double agent who alerted a large number of North Vietnamese soldiers to their whereabouts . When Delta found Bourne after killing his way through the North Vietnamese, he simply executed Bourne in the jungles of Tam Quan . Bourne's murder was never exposed due to the Top Secret status of Medusa . </P> <P> Years later, a black ops arm of the CIA was formed to eliminate the notorious Carlos the Jackal and called Treadstone Seventy - One, named after a building on New York's Seventy - First Street, and Webb was called up by the creator of Treadstone and Medusa, David Abbott, who was nicknamed The Monk, (short for The Silent Monk of Covert Operations) to be its principal agent . At this point, Webb (Delta) takes the identity of Jason Bourne due to the actual Bourne's status as MIA in the war as well as the fact that Bourne was in reality a ruthless killer with a long criminal record . The point of all this was to turn Jason Bourne into something more than he really was, a contract assassin who would be known all over the world for terminating the lives of just about anyone . The assassin's alias was Cain . The reasoning for creating such a myth was to create competition for the well - known assassin named Carlos, or Carlos the Jackal (real name Ilich Ramírez Sánchez) who at that time was considered the world's best and most famous assassin . The name Cain was chosen because it had some significance for what he was doing . During Vietnam, Cain was used instead of Charlie in the phonetic alphabet (Alpha, Bravo, Charlie, Delta, Echo, Foxtrot ...) because Charlie became synonymous with Viet Cong . So Delta dropped back one letter to Cain, which stood for Charlie . In Spanish, Charlie is Carlos; Carlos was Venezuelan . The myth of Cain was created by having Cain take credit for any well - publicized killings that took place in Asia, and later in Europe, regardless of the circumstances . By creating this myth, Cain was to drive the reclusive Carlos out in the open "long enough to put a bullet in his head". To add insult to Carlos's name, Cain stole the credit for Carlos's kills, even when Cain had no part in them . </P> <P> In the film series, Jason Bourne was born as David Webb on September 13, 1970 in Nixa, Missouri (although in Ultimatum, he was given a false date of April 15, 1971, as a coded reference to a specific site). He joined the United States Army and was eventually selected for Delta Force in 1998 . His father, Richard Webb, a senior CIA analyst, created the Treadstone program, a black ops project intended to train and deploy elite assassins . He was monitored by the CIA, which murdered his father with a car bomb in Beirut in a bid to recruit Webb . </P>

Cain is for charlie and delta is for cain
find me the text answering this question