Brian Martin is a retired public servant, currently a Visiting Fellow at the Australian Centre on China in the World, ANU. He has been engaged in the field of Chinese studies for forty years, both in academia and in public service. His scholarly research interests lie in the field of modern Chinese history, specifically Republican China (1911–1949). His major research has been the study of the social and political role of banghui in a modernising urban environment in early 20th century China, focussing on the Green Gang (qingbang) in Shanghai. He published a monograph on the Shanghai Green Gang in 1996, with a Chinese-language edition in 2002. In addition he has published numerous articles on different aspects of the Shanghai Green Gang over the years, a number of which have been translated and published in Chinese journals. He is presently researching the politics of collaboration in the Second Sino-Japanese War, with a view to publishing a monograph on the role.