They were crack troops skilled in the techniques of unconditional warfare, the soldiers of the Special Forces-and the focus of Hollywood's first feature film about the Vietnam War: The Green Berets.John Wayne stars in and co-directs this depictionof America's Vietnam effort, based on Robin Moore's novel. Wayne wrote to President Lyndon Johnson to request military assistance for the film - and got more than enough firepower to create an impressive spectacle. Its soldiers fit and tried-and-true mold of earlier Wayne war classics like Back To Bataan and Sands Of Iwo Jima. Their heroics are timeless.