(From left to right:) Singaporean Lt. Col. Francis Goh, the commanding officer for the Underwater Demolition Group with Singapore’s Naval Dive Unit; Maj. Gen. James S. Hartsell, the mobilization assistant to the U.S. Pacific Command commander; and Capt. Richard Laszok, the company commander for Bravo Company, 3rd Reconnaissance Battalion, watch as members of the UDG give a presentation over Singapore’s dive tactics Feb. 27, 2015 in one of the School of Infantry-West classrooms in building 223 aboard Marine Corps Base Hawaii. The training was part of Exercise Sandfisher, an annual exercise that provides hands-on experience for Okinawa-based Marines specializing in combatant diving; small-boat operations; underwater navigation; high-altitude, high-opening parachuting and ground reconnaissance tactics. - (From left to right:) Singaporean Lt. Col. Francis Goh, the commanding officer for the Underwater Demolition Group with Singapore’s Naval Dive Unit; Maj. Gen. James S. Hartsell, the mobilization assistant to the U.S. Pacific Command commander; and Capt. Richard Laszok, the company commander for Bravo Company, 3rd Reconnaissance Battalion, watch as members of the UDG give a presentation over Singapore’s dive tactics Feb. 27, 2015 in one of the School of Infantry-West classrooms in building 223 aboard Marine Corps Base Hawaii. The training was part of Exercise Sandfisher, an annual exercise that provides hands-on experience for Okinawa-based Marines specializing in combatant diving; small-boat operations; underwater navigation; high-altitude, high-opening parachuting and ground reconnaissance tactics.