Original sentence: When the activities of the Militant Tendency began to attract media attention from 1975, the Militant newspaper emphasised the consonance of its policies with the decisions of the Labour Party conference, which demonstrated its legitimacy as a genuine current within the Labour party
Edited sentence: When the attacks on the Militant began in 1975, the Militant emphasised the consonance of its policies with the decisions of the Labour Party conference, which demonstrated its legitimacy as a genuine current within the Labour party