Just War is a novel by Lance Parkin from the Virgin New Adventures. The New Adventures were based on the long-running British science fiction television series Doctor Who. The novel featured the characters of the Seventh Doctor, Bernice Summerfield (known as Benny), Chris Cwej and Roz Forrester. The story is set in Nazi Germany-occupied Guernsey, a rare example of part of the British Isles being 'colonised' by another power.