Understanding the Deterrent Impact of U.S. Overseas Forces

This report provides empirical evidence on the deterrent effects of U.S. overseas military forces. It investigates how these effects might vary by the type, size, and location of these forces, as well as the effects of U.S. forces deployed in the midst of crises. The analyses provide the clearest evidence in support of the deterrent effect of heavy ground forces, particularly when deployed near but not directly bordering potential adversaries.