Fire Brigades Union

The provided news articles focus on the NASUWT teachers' union and political developments within the Labour Party. There is no mention of the Fire Brigades Union (FBU) in either article. Therefore, it is impossible to provide a summary about the FBU based on the given information. The articles discuss calls for extended maternity leave for teachers and speculation about potential successors to Keir Starmer as leader of the Labour Party. The FBU's activities, relevance, or any recent developments concerning the organization are not addressed in these articles.