Which division is responsible for providing landside protection?

The division responsible for providing landside protection is the Naval Safety Forces (NSF). NSF is specifically tasked with safeguarding bases and facilities on land, ensuring that entry points and vulnerable areas are monitored and secure. This includes implementing physical security measures, conducting patrols, and responding to any potential threats to ensure the safety and security of personnel, equipment, and installations.

The other options highlight various divisions that have their own distinct missions. For instance, the Marine Corps Security Forces Battalion (MCSFBn) typically focuses on securing designated areas and assets for the Marine Corps, while Military Working Dogs (MWD) are primarily utilized for detection and security tasks, aiding in various operations including patrol and search missions. The Harbor Patrol Unit (HPU) is usually involved in maritime security and operational support related to waterways, rather than landside operations. Therefore, while each division plays a critical role within naval operations, the NSF's primary focus on landside protection makes it the correct choice for this question.