From Citizendium, the Citizens' Compendium
- See also changes related to Defender-class, or pages that link to Defender-class or to this page or whose text .
- United States Coast Guard : A uniformed service of the United States, with diverse maritime safety, search and rescue, law enforcement, and military responsibilities
- Patrol boats : Add brief definition or description
- Search and Rescue : Specially trained personnel, and specially prepared vessels and aircraft, are devoted to searching for and resucing indivduals lost or stranded in isolated areas