The United States has several hundred military bases scattered across the world. But how do citizens within countries hosting US troops feel about those bases and US military personnel?  In this episode, we are joined by Carla Martinez Machain, who conducted groundbreaking public opinion research on how exposure to a US military presence in an allied country impacts attitudes towards the US government, military and Americans more generally.  Carla Martinez Machain is a professor of political science at the University of Buffalo and is co-author of the new book "Beyond the Wire: US Military Deployments and Host Country Public" Opinion, with Michael A Allen, Michael E Flynn, and Andrew Stravers.  We discuss the sheer scope of US basing around the world before having a broader conversation about the relationship between US bases, public opinion, and foreign policy.