Hawaii Army National Guard (HIARNG) soldier, Sgt. Trevor J. Castro, a helicopter repairer, assigned to 1-183rd Aviation Regiment, 103rd Troop Command, simulates throwing a grenade, Schofield Barracks, Hawaii, March 6, 2022. Grenade throwing was the mystery event in the Expert Soldier Badge (ESB) tasks event for the annual Best Warrior Competition (BWC).

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Keywords: ., 183rd, ancheta, army, aviation, casandra, competition, guard, hawaii, hiarng, national, regiment, spc., warrior