Abstract
During the Philippine-American War (1899-1902), the Anti-Imperialist League was the organizational vanguard of an anti-imperialist movement. Research on this period of U.S. imperialism has focused on empire building, ignoring the gendered activity of anti-imperialists in the metropole. The author outlines the constitutive relationship between gendered structures and experience that informed anti-imperialists' “contentious politics,” using archival sources of the Anti-Imperialist League and anti-imperialist debates in newspapers. The author shows how anti-imperialist leaders informally included women's monetary donations, labor, networks, and reputations while formally excluding their full membership. Finally, the author shows how masculinist ambivalence, or the pattern of the gendered inclusions/exclusions of anti-imperialists, explains the incremental transformations and reproductions of gendered structures in anti-imperialists' contentious politics. The author suggests masculinist ambivalence has theoretical utility for explaining gendered inclusions and exclusions in movements that are not explicitly about gender conflict or change.