Photo: MSRT members deployed in a special rigid-hull inflatable patrol boat.

MSSTs and MSRTs

Forged in the crucible of 9/11 

With the terrorist attacks of Sept. 11, 2001, the war on terror set in motion dramatic changes to the Coast Guard. Prior to the 9/11 attacks, U.S. ports, waterways, and coastlines were protected primarily by Coast Guard boat stations and cutters. Immediately following September 11th, Coast Guard resources were reallocated to fill the additional maritime security functions required in a post-9/11 environment.

Photo: Cutter Tahoma with the Manhattan skyline in the background.

Credit: U.S. Coast Guard

Cutter Tahoma

In 2002, President George W. Bush signed the Maritime Transportation Security Act (MTSA) to protect the nation’s ports and waterways from terrorist attacks. The MTSA provided for a Coast Guard maritime security force to function as part of the Department of Homeland Security’s layered strategy to protect the nation’s seaports and waterways. That same year, the Coast Guard began forming Maritime Safety and Security Teams (MSSTs), supporting the Ports, Waterways, and Coastal Security mission and providing non-compliant vessel boarding capability for Service missions. Today, there are 11 MSST teams whose specialties include waterside security, maritime law enforcement and K9 explosives detection units. MSST assignments have included military force protection, United Nations General Assemblies, national political conventions, international economic summits, hurricane response efforts and major sporting events, such as the Super Bowl.

Photo: Members of a Maritime Safety and Security Team during fast-rope training from an Air National Guard helicopter.

Credit: U.S. Coast Guard

Members of a Maritime Safety and Security Team during fast-rope training from an Air National Guard helicopter.

In 2004, in order to fully address the service’s congressionally mandated Maritime Homeland Security responsibilities, Coast Guard leadership merged Chesapeake, Virginia’s MSST-91102 with Tactical Law Enforcement Team-North to form a new maritime counter-terrorism response capability. Originally designated the Security Response Team One (SRT-1), and then renamed the Enhanced-MSST, the unit was formally established in 2006 as the Maritime Security Response Team. In 2013, the Service began forming a second MSRT on the West Coast by transforming San Diego’s MSST-91109 into an MSRT. In 2017, the Service officially changed MSST-91109 into MSRT-West so that there now exists an MSRT-West and the MSRT-East in Chesapeake.

Photo: MSRT members in group photo in camouflage gear

Credit: U.S. Coast Guard

Members of the Maritime Security and Response Team during 2015 nighttime training operations.

The MSRTs maintain a ready alert force to support Coast Guard operational commanders and Department of Defense combatant commanders for both short-notice emergent operations as well as planned security events. Examples of MSRT support include subject matter expertise for high-threat security incidents, foreign government law enforcement and security training, national special security events, and a variety of contingency and disaster relief operation support options, including force protection, robust tactical medicine capabilities, and forward reconnaissance and information gathering capabilities. Recent operations have included presidential inaugurations, boarding operations for U.S. Navy task forces, NATO summits and United Nations General Assemblies and border security operations on the Southern Border.

Photo: MSST members in read coats drack punt boat over flooded road.

Credit: U.S. Coast Guard

Maritime Safety and Security Team members deployed to Houston with a punt boat during Hurricane Harvey rescue operations.

In 2007, the service stood-up the Deployable Operations Group (DOG) to oversee Deployable Specialized Forces (DSF), such as MSRTs, MSSTs, Port Security Units, National Strike Force teams, Regional Dive Locker personnel and Law Enforcement Detachments (LEDETs). Later, the service decommissioned the DOG and, in 2013, area commands re-assumed operational and tactical control of DSFs, such as the MSSTs and MSRTs.

The 2001 terrorist attacks reshaped the Coast Guard, including new homeland security units. The service’s response to 9/11 demonstrated its flexibility and relevance to homeland security and rapid response requirements. Moreover, a variety of new units, like the MSSTs and MSRTs, emerged as part of the Coast Guard’s greatest organizational transformation since World War II.

National Coast Guard Museum insider tip: Visitors to the National Coast Guard Museum will be able to learn more about MSSTs, MSRTs, and the many other national security capabilities that grew out of 9/11 on Deck 3 of the Museum!

Dr. William Thiesen currently serves as a member of the Coast Guard Historian’s Office. He has published hundreds of naval, maritime and Coast Guard history articles in print and online and his books include Industrializing American Shipbuilding: The Transformation of Ship Design and Construction, 1820-1920 and Cruise of the Dashing Wave: Rounding Cape Horn in 1860. He is currently a contributor and managing editor for the Coast Guard Historian’s Office blog series, “The Long Blue Line,” which has published over 500 Coast Guard history essays.”