CIMSEC – The Chilean Navy is more than just a national warfighting force aimed at conventional deterrence. Earthquakes, volcanic eruptions, fires, and tsunamis are all examples of natural disasters that Chile faces in which the Navy is one of the first to provide support. Along with disaster relief and safeguarding life at sea, countering Illegal, Unreported, and Unregulated (IUU) fishing is one of the most economically important duties of the Chilean Navy. IUU fishing is not only a matter of protecting the economy, but it is also a matter of the sustainability of natural resources in the Chilean Exclusive Economic Zone (EEZ). To tackle IUU, Chile requires creativity, and resourcefulness. The key to accomplishing the task, like for many small- to medium-sized navies, is regional cooperation.