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# Stethem Enhances Anti-submarine Warfare Skills during SHAREM Exercise

By Ensign Rebecca SpeerUSS Stethem Public Affairs

                PHILIPPINE SEA  –              
Sailors aboard the Arleigh-burke class guided-missile destroyer USSStethem (DDG 63) participated in the Ship Anti-submarine Warfare (ASW)Readiness and Evaluation Measurement (SHAREM) exercise, Dec. 8-12.
Stethem was joined by guided-missile destroyer USS Lassen (DDG 82) and aVirginia-class submarine to conduct an evaluation of ASW tactics. Theseexercises not only evaluated Stethem’s sensors, but also honed watchstanderproficiency. 
Stethem and Lassen flexed their active and passive sonar capabilities todetect underwater threats at the maximum ranges possible. The events weredesigned to test the full spectrum of ASW capabilities and tactics.
“SHAREM gave us the opportunity to train new technicians, and even Ilearned some new things,” said Sonar Technician Geographical First ClassErhrolejhan Navarro from San Jose, Calif. “We had Applied Physics Lab andAcoustic Physics Lab representatives on board who held invaluable training onactive acoustic analysis and passive bottom ranging techniques.”      
The exercise commenced Dec. 9 with a submarine familiarization. Thisevent trained watchstanders on visual and electronic submarine detectiontechniques.  SHAREM included freeplayevents that placed the ship in a war-game scenario testing approach and attacktechniques, and structured events designed to collect data on the effectivenessof dynamic maneuvering and torpedo evasion tactics. 
The events as a whole focused on the fundamentals of ASW: search,detect, identify, track, and target underwater contact. 
“We are constantly trying to improve our underwater threat detection andprosecution tactics so, the additional training was very welcomed andappreciated,” said Sonar Technician Geographical Third Class Samuel Zieglmeierfrom Cambridge, Minnesota. Stethem is one of seven Arleigh-burke class guided-missile destroyers assignedto Destroyer Squadron 15 and is permanently forward-deployed to Yokosuka, Japansupporting security and stability in the Indo-Asia-Pacific region.**                    SHARE                **                    PRINT                SHAREM Exercisepacomnewsarticles