Building trust: The effect of US troop deployments on public opinion in Peru

Since the 1950s, US military personnel have taken on an increasingly diverse set of responsibilities, including less traditional roles delivering disaster aid and engaging in public diplomacy. Focusing on a particular subset of deployments, humanitarian and civic-assistance deployments to Latin America, we examine the effect that a US military presence can have on public opinion in the host country. We focus on the microfoundations of popular support and use survey data and newly collected subnational data on deployments to examine the effect of these deployments on mass attitudes toward the US military and government in Peru. We find that these deployments do improve perceptions of the US military and government, and correlate with assessments of US influence that are more positive. Our findings bolster the conclusions of previous research that shows how aid can both improve public attitudes toward the donor country and address the foreign aid attribution problem.