This document discusses maritime environmental security and the international and EU institutional context. It summarizes that shipping is critical to international trade and the EU economy. It also discusses some of the major oil spills caused by maritime accidents over the past few decades. In response to accidents like the Erika and Prestige, the IMO and EU have implemented numerous conventions and regulations to improve maritime safety and protect the environment, including SOLAS, MARPOL, and the establishment of the European Maritime Safety Agency.