taken by Ocelot for the CIA) as well as with intelligence data that lead to the breakthrough in the Chinese nuclear weapons program. Snake discovers a tape EVA has left revealing all her secrets. The epilogue prior to the credits goes on to state that EVA disappeared in Hanoi, North Vietnam, during the Vietnam War in 1968. EVA reappears in Metal Gear Solid: Portable Ops as a recruitable character by completing a series of optional missions. In 1971, Big Boss and EVA reconciled after she was tracked down and rescued in Hanoi, and is invited to become a founding member of a shadow government along with Zero, Para-Medic (Dr. Clark), Sigint and Ocelot. At some point, she also discovered Ocelot's codename of ADAM, and the two reconciled. In 1972, EVA volunteered to serve as a surrogate mother in the Les Enfants Terribles project designed with Big Boss's "sons" to maintain an icon for their organization. She was originally implanted with eight clone fetuses, though six were intentionally aborted in order to encourage stronger growth in the remaining two, giving birth to Solid Snake and Liquid Snake. Despite Big Boss's disapproval and eventual defection in opposition to Zero's methods, EVA saw the "sons" as her own children. EVA does not make a direct appearance in Metal Gear Solid: Peace Walker. She would remain in contact with Big Boss, passing on cassette tape recordings to the Militaires Sans Frontieres in 1974. In them, she detailed further information on The Boss's final mission, and the motivations behind her actions, having been entrusted to pass this on to Big Boss. These tapes were later supplied to Big Boss with no return address except with her name EVA, with Big Boss hesitantly explaining that she was an "old acquaintance". In Metal Gear Solid 4: Guns of the Patriots, which is set in 2014, she appears under the identity of (also called Matka Pluku, Czech for "Mother of the Regiment") as the leader of the Paradise Lost Army resistance movement against The Patriots. It is revealed that she was fired from her job as a spy after she failed a mission in the previous game. She assists Old Snake in Eastern Europe. During a chase, EVA crashes her motorcycle and is impaired, seriously injuring her. When Liquid throws Big Boss's body into a fire, she attempts to save it but is nearly burned to death. Snake