What is the primary military branch responsible for maritime search and rescue?

The Coast Guard is primarily responsible for maritime search and rescue operations. This branch of the military is specifically tasked with various missions related to maritime safety, security, and environmental protection. One of the key roles of the Coast Guard is to conduct search and rescue operations at sea, which includes responding to distress signals, rescuing individuals in danger on the water, and providing assistance to vessels in emergencies.

While the U.S. Navy and the Air Force can participate in search and rescue operations, particularly in joint efforts or for military personnel, the Coast Guard is the primary agency for these operations in domestic waters and is uniquely equipped and trained for the challenges of rescuing individuals from maritime environments. The National Guard, while it can assist in emergencies, does not have the same mandate or resources specifically focused on maritime search and rescue as the Coast Guard does. This specialized focus and expertise make the Coast Guard the correct answer.