Since 2013, there has been a movement to posthumously promote Monash to the rank of field marshal. Monash would be the fourth person, and only second Australian-born person, to hold this rank. The movement was led by Tim Fischer, former Australian Deputy Prime Minister and author of the book, "Maestro John Monash: Australia's Greatest Citizen General", and supported by other Australian Members of Parliament including Josh Frydenberg and Cathy McGowan. According to Fischer, Monash was denied promotion during his life due to discrimination, including as a result of his German-Jewish ancestry and his status as a reservist rather than professional soldier.