Illustration of a Mexican Navy Oaxaca class Offshore Patrol Vessel. ARM Hidalgo is a vessel of this class.
Below is a news release from District 11 you can also see on the Coast Guard News website. There are additional photos there. I have put together photos to illustrate the type vessels involved.

190729-N-AD499-1166 SEATTLE (July 29, 2019) The Royal Canadian Navy Kingston-class coastal defence vessel HMCS Edmonton (MM 703) participates in a parade of ships in Elliott Bay during the 70th annual Seattle Fleet Week. Seattle Fleet Week 2019 is a time-honored celebration of the sea services and provides an opportunity for the citizens of Washington to meet Sailors and Coast Guardsmen, as well as witness firsthand the latest capabilities of today’s maritime services. (U.S. Navy photo by Mass Communication Specialist 3rd Class Victoria Foley/Released)

220209-N-IW125-1091 KEY WEST, Fla. (Feb. 9, 2022) The Navy’s 14th Independence-variant littoral combat ship, USS Savannah (LCS 28), pulls into Truman Harbor in Key West, Fla. Feb. 9, 2022. (U.S. Navy photo by Mass Communication Specialist 2nd Class Nicholas V. Huynh)

NEWPORT, OR, UNITED STATES
08.16.2019, Coast Guard Cutter Active (WMEC 618) transits across the Pacific Ocean near Newport, Ore., in support of Operation Pacific Fortune on Aug. 16, 2019. The Active is a 210-foot Medium Endurance based out of Port Angeles, Wash. (U.S. Coast Guard photo by Petty Officer 2nd Class Steve Strohmaier)
U.S. Coast Guard, U.S. Navy, Mexican Navy and Royal Canadian Navy participate in North American Maritime Security Initiative
ALAMEDA, Calif. — The U.S. Coast Guard, along with the U.S. Navy, Mexican Navy (SEMAR) and the Royal Canadian Navy (RCN) participated in the North American Maritime Security Initiative (NAMSI) exercise off the coast of Manzanillo, Mexico March 27-31.
First instituted in 2008, NAMSI is an interagency and tri-lateral forum among U.S., Mexican and Canadian maritime commands intended to develop and refine maritime operations, as well as synchronize training and operational interoperability amongst forces of the three nations. The three participating nations actively seek opportunities to operate together and strengthen their cohesive approach to enhance regional maritime security in North America.
The U.S. Coast Guard District 11 and SEMAR collaborate extensively under NAMSI, conducting an average of four multinational passing exercises each year. The NAMSI Pacific Exercise (PACEX) 2023 is a full-scale Maritime Law Enforcement (MLE) based exercise that facilitates MLE operations with a SAR nexus built in. The exercise is intended to strengthen the crew’s knowledge in handling various situations and offers unique training scenarios like communication drills or maneuvering exercises.
“This exercise provides U.S., Mexico and Canada the opportunity to develop and refine our training and operations as partner nations,” said Rear Adm. Andrew Sugimoto, commander, U.S. Coast Guard District 11. “We take pride in our ability to strengthen partnerships and interoperability among the nations’ sea services.”
The U.S. Coast Guard Cutter Active and the U.S. Navy Independence-variant littoral combat ship USS Savannah (LCS 28), joined the SEMAR ship ARM Hidalgo and the RCN ship HMCS Edmonton, off the coast of Manzanillo in support of the NAMSI PACEX 2023. The operational units were supported by aviation assets from the U.S. Coast Guard and SEMAR, as well as the respective command centers in U.S. Coast Guard District 11, U.S. Navy 3rd fleet, SEMAR Tenth Naval Region and SEMAR headquarters.
The crews of Active and U.S. Coast Guard cutter Benjamin Bottoms also deployed in support of Operation GREEN FLASH (OGF). OGF is the operationalization of NAMSI procedures leveraging U.S., Canadian, and Mexican maritime forces, with the intent of disrupting transnational criminal organization activity that occurs in the shared maritime environment. U.S. Coast Guard District 11 organizes annual iterations of OGF which strengthens the relationship between the major stakeholders under NAMSI. Historically, there have been two iterations of OGF a year, averaging 30 days each.
“The cutter Active’s crew was excited to conduct this mission alongside our partners given its importance for the safety and security of the shared maritime environment,” said Cmdr. Brian Tesson, commanding officer, U.S. Coast Guard Cutter Active. “The partnerships between the U.S., Mexico and Canada strengthened our overall maritime security posture while reinforcing the mutual esprit de corps between our services.”











