Which branch is responsible for protecting territorial waters and maritime interests?

The Coast Guard is specifically responsible for protecting territorial waters and maritime interests. This branch of the military has a unique role that focuses on enforcing laws and maintaining maritime safety within the nation's coastal areas. They are tasked with search and rescue operations, preventing illegal fishing, smuggling, and ensuring safe navigation in U.S. waters. Additionally, the Coast Guard plays a vital role in environmental protection and maritime security, making it essential for safeguarding a country's maritime resources and sovereignty.

While the Navy also has a significant role in maritime operations and global maritime security, its primary focus is more on naval warfare and operations beyond territorial waters. The Army and Air Force have distinct responsibilities centered around land and aerial warfare, respectively. Therefore, the Coast Guard is the most relevant branch for the explicit duty of protecting territorial waters and maritime interests.