On December 4, while the ROK Navy submarine Anmu was docked at Apra Harbor in Guam, Anmu’s commanding officer, Captain Ahn Geon-young (third from left), and Master Warrant Officer Etienne Langlois of the Royal Canadian Navy Submarine Forces (second from left), posed for a commemorative photo at the submarine’s brow. Until now, foreign officers and sailors have joined Korea’s Jang Bogo–class (SS-I) and Son Won-il–class (SS-II) submarines during major multinational exercises such as Silent Shark, RIMPAC, and PAC-REACH. These exchanges have long contributed to strengthened interoperability and deeper partnership-building between the ROK Navy and allied submarine forces.

For this year’s exercise, the ROK Navy hosted Etienne Langlois, Master Warrant Officer of the Royal Canadian Navy’s Submarine Forces. Langlois, a veteran sonar operator with 27 years of service and operational experience aboard Canada’s Victoria-class submarines, joined Anmu’s crew throughout the drill.

During the embarkation, Anmu’s crew conducted a range of missions—including ASW training, free-play engagements, and combined anti-submarine operations—while introducing Langlois to the submarine’s operational procedures and the performance features of Korea’s latest 3,000-ton class submarine.

During the Silent Shark 2025 at-sea exercise held from December 5 to 10, Master Warrant Officer Etienne Langlois of the Royal Canadian Navy Submarine Forces embarked aboard the 3,000-ton Anmu (SS-III), experiencing firsthand the advanced capabilities of the Korean submarine. 

Captain Ahn Geon-young, commanding officer of Anmu, highlighted the significance of the event. “It is symbolic of the close cooperation between our navies that the Dosan Ahn Chang-ho–class submarine hosted a Canadian submariner for the first time during a combined exercise,” he said. “We are confident this experience will reaffirm the excellence of Korean submarine capabilities and further contribute to the momentum of K-defense exports in the maritime sector.”

Master Warrant Officer Langlois expressed appreciation for the opportunity. “The embarkation aboard Anmu was an outstanding experience,” he said. “I was able to build strong bonds with the Korean submarine crew and witness firsthand the high level of technology in the ROK Navy’s submarines. I am grateful for the opportunity and look forward to sharing these insights with my colleagues in Canada. Continued cooperation between our navies will benefit both sides.”

The ROK Navy stated it will continue supporting K-defense maritime exports through tailored “Total Solution” packages for submarines, frigates, and related naval systems.

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