Overview: In 1970 the SAS developed the 'Green' (war-insertion) skills of free-falling, water operations, and vehicle-mounted operations. When terrorism became an international threat, the SAS raised Australia's first Counter-Terrorist (CT), or 'Black' force. In the long peace after Vietnam the SAS eagerly looked for work and diversified its skills by conducting many niche missions. But as its creative flair waned in the 1990s, it reinvented itself as a postmodern organisation.