France, UK and U.S. Navies Complete Artemis Trident 19

By U.S. 5th Fleet Public Affairs | April 18, 2019

France’s Marine Nationale, the United Kingdom’s Royal Navy and the U.S. Navy completed the U.S. 5th Fleet mine countermeasures exercise Artemis Trident in the Arabian Gulf in April 2019.

The scenario for the defensive exercise was for coalition forces to provide safe passage to humanitarian relief vessels through a mined area.

“Mines threaten maritime traffic indiscriminately,” said U.S. Navy Capt. Jeffrey Morganthaler, Commodore of Task Force 52 and lead for the exercise. “Training together ensures we can collectively protect unfettered operations of naval and support vessels, as well as commercial shipping movements, throughout the maritime domain.”

In the exercise scenario, geographically dispersed forces practiced choke point and harbor clearance to open over 70 nautical miles of channels and routes for neutral shipping. Integrating the capabilities and multiple sensors from the three countries enhanced the overall effectiveness of the force.

The exercise involved over 700 personnel, 10 ships, and five helicopters from the three nations. The ships included the U.S. Navy expeditionary sea base USS Lewis B. Puller (ESB 3), fleet ocean tug USNS Catawba (T-ATF 168), Avenger-class mine countermeasures ship USS Sentry (MCM 3), Island-class coastal patrol boats USCGC Maui (WPB 1304) and USCGC Wrangell (WPB 1332); the United Kingdom Royal Navy’s RFA Cardigan Bay (L3009) and minehunters HMS Shoreham (M112) and HMS Ledbury (M30); and the French Marine Nationale’s minehunters FS L’Aigle (M647) and FS Sagittaire (M650).

Two afloat forward staging bases provided command and control platforms and supported the air, surface, and underwater mine countermeasures triad. As part of the exercise, FS L’Aigle and HMS Ledbury simultaneously rafted with the RFA Cardigan Bay while landing an MH-53 helicopter. USS Lewis B. Puller embarked expeditionary mine countermeasures teams from all three nations while supporting helicopter refueling operations.

The afloat forward staging bases’ support increased the endurance of the mine hunters, demonstrating how a multinational force could conduct sustainment and repairs during extended mine clearance operations.

In another scenario, six of the ships practiced collective self-defense, working together to defend themselves from simulated air and surface threats.

“The exercise has been a highlight in our current deployment, and it exemplifies how we are stronger together, in an area that is so complex,” said France’s Marine Nationale Lt. Pierre, mine clearance diving officer aboard FS L’Aigle. “France deploys MCM vessels on a regular basis to the Arabian Gulf, to maintain expertise of the local environment, and I am looking forward to the next exercise.”

Command and control was fully integrated throughout the exercise. The Commander UK Mine-Counter Measure Forces and his staff led Combined Task Group 52.2 from aboard the RFA Cardigan Bay, leading RFA Cardigan Bay, HMS Ledbury, FS L’Aigle and a U.S. Navy mine hunting unit. The United States Navy led Combined Task Group 52.3, focused on expeditionary mine countermeasures with diving forces from all three nations. The French Mine Warfare Battle Staff, embarked on USS Lewis B. Puller, commanded Combined Task Group 52.4 including Puller, USS Sentry, FS Sagittaire and HMS Shoreham.

"There are many similarities between all three MCM communities from the comradeship and professionalism onboard these small ships, to the quest to embrace emerging maritime autonomous technology,” said Royal Navy Commander Steven White, commander of Combined Task Group 52.2. “MCM is a complex and dangerous business that many people do not understand, these exercises allow me along with my fellow task group commanders, and commanding officers of ships and diving units to practice and refine our skills and procedures so we are ready when called upon to do this for real."

Task Force 52 plans and executes mine warfare operations in support of U.S. 5th Fleet operational objectives.

U.S. 5th Fleet area of operations encompasses about 2.5 million square miles of water and includes the Arabian Gulf, Gulf of Oman, Red Sea and parts of the Indian Ocean. The expanse is comprised of 20 countries and includes three critical choke points at the Strait of Hormuz, the Suez Canal and the Strait of Bab al Mandeb at the southern tip of Yemen.