Anti-Dalek Force

The , often abbreviated to just ADF, was a military and scientific organisation authorised by the United Planets to find ways of defeating the Daleks. The precise time period and area of space in which they operated was unknown, but it ran operations far beyond the solar system, to locations at least as remote as the Twelve Galaxy (DWA: The Human Bombs) Thus, it existed during a period when humans had colonies well beyond Earth, and even beyond Earth's own galaxy. Nevertheless, the organisation was headquartered on Earth. (DWA: Island of Horror)

Two of its primary agents were its leader, Space Major Joel Shaw, and the android, Mark Seven. (DWA: Terry Nation's Dalek Annuals 1976 - 1979)

Behind the scenes
The ADF were the protagonists of all four of the latter Dalek Annuals.