Which of the following is NOT one of the five roles of the Coast Guard?

The five roles of the Coast Guard are critical to understanding its multifaceted mission. One of these roles is indeed environmental protection, which includes safeguarding the marine environment, ensuring compliance with environmental regulations, and responding to pollution incidents. Recognizing the growing importance of environmental issues, the Coast Guard integrates this role into its operations, focusing on protecting the nation's waters and marine resources.

Maritime mobility is essential for ensuring the efficiency and reliability of transportation and commerce over the waterways while enabling safe passage for vessels. National defense forms a cornerstone of the Coast Guard's responsibilities, as it operates in support of broader defense initiatives and works to protect the nation from various maritime threats. Maritime safety is also a fundamental role, aimed at preventing accidents, improving safety standards, and ensuring the wellbeing of those who travel the seas.

The misconception here lies in assuming that environmental protection is not a core role; however, it is indeed one of the five prominent roles of the Coast Guard, showcasing its commitment to both security and environmental stewardship.