She is author of All Necessary Measures: The United Nations and Humanitarian Intervention, Pennsylvania Studies in Human Rights (University of Pennsylvania Press 2013). Working collaboratively with Susan Waltz (University of Michigan), Walling launched a website on human rights advocacy and the history of international human rights standards. She holds a Ph.D. in Political Science with a minor in Human Rights from the University of Minnesota. Before joining the faculty at Albion in 2011, Walling was a postdoctoral fellow with the Michigan Society of Fellows at the Gerald R. Ford School of Public Policy, University of Michigan (2008-2011).