What is the primary mission of the Marine Security Guard (MSG)?

• A. Patrol domestic facilities
• B. Provide security at U.S. embassies and consulates worldwide
• C. Provide aviation security
• D. Conduct amphibious assaults

Answer: (B)

Diplomatic security for U.S. diplomatic missions abroad is the primary function of Marine Security Guards. MSGs are posted at U.S. embassies and consulates worldwide to provide armed protection, control access, and respond to threats to personnel, facilities, and information. They deter and detect security risks, coordinate with the Diplomatic Security Service and host-nation authorities, and ensure safe operation of the mission, including during protests or emergencies. This overseas focus on safeguarding embassies and consulates distinguishes MSGs from other security roles. Domestic patrols or aviation security and amphibious assault capabilities belong to different areas of Marine and security operations.