Although the serious consequences caused by invasive species reaching our shores have received considerable attention, the problems caused when U.S. species land in other countries has not. Exported species have caused extensive damage to other nations, but little progress has been made toward creating policy, both international and domestic, to mitigate the exportation of potentially invasive species. Today, we continue to send species, intentionally and unintentionally, from the United States to other nations. These species can be transported by air, land, and sea through tourism, military operations, trade, development assistance projects, and industry expansion. Here are just some of the problem species we have exported.